Looking for questions and answers for the 2009 National Construction Cost Estimator Qualification Exam.

Single choice questions (***60 questions, 1 point per question, ***60 points. Fill in the number of the correct answer option into the corresponding position of the answer card, and score points for the right choice, and no points for no choice or wrong choice.)

1. The following statement is incorrect about the characteristics of engineering cost: ( ).

A, the large amount of engineering cost so that it has a significant impact on the macro-economy

B, the variability of the product depends on the individuality of the differences in engineering cost

C, the cost of the project is in a state of uncertainty throughout the construction period, until the completion of the final accounts can be finalized to determine the actual cost of the project

D, the compatibility of the engineering cost is expressed firstly in that it Has two meanings, the second performance in the project cost factors constitute a wide range and complexity

2, in the use of three-stage design of the technical design stage, according to the requirements of the technical design, through the preparation of ( ) document pre-measurement and limit the cost of the project.

A, investment estimates B, estimated cost C, revised estimated cost D, budget cost

3, engineering project management is the core ( ).

A, contract management B, price management C, schedule management D, quality management

4, for certain national and people's livelihood in urgent need of the project, such as the national economic evaluation is reasonable, the financial evaluation is not feasible, ( ).

A, should be adopted B, should be denied C, generally should be denied D, should reconsider the program

5, the delivery of imported equipment can be divided into inland delivery category, the destination of delivery category and the port of shipment delivery category, including freight prices for ( ).

A, FOS B, C & F C, CIF D, FOB

6, construction projects through the allocation of land use rights for an indefinite period of time should pay ( ).

A, land acquisition and relocation compensation fee B, land requisition fee

C, land compensation fee D, land use right premium

7, research and testing costs do not include ( ).

A, their own survey and test labor costs, material costs

B, their own survey and test test test equipment and instrumentation costs

C, according to the provisions of the commodity inspection department to pay the imported equipment inspection and appraisal fees

D, commissioned by other departments to survey and test the labor costs, material costs, testing equipment and instrumentation costs

8, a project from an investment company to get 20 million yuan loan, the annual interest rate ī = 8%, quarterly interest. The loan contract provides that the borrower in the 10 years after the loan, the end of each year, equal repayment of principal and interest, 10 years to pay off. Ask the amount of loan repayment due each year is (*-+) million dollars.

A, 216.48 B, 298.06 C, 301.29 D, 302.10

9, on the economic evaluation of construction projects, the following statement is wrong ( ).

A, financial evaluation is used to determine the financial feasibility of the project

B, national economic evaluation is used to evaluate the economic rationality of the project

C, financial evaluation is the basis of national economic evaluation

D, financial evaluation is the main basis for determining the feasibility of the construction project

10, reflecting the project's cash receipts and disbursements for each year of the calculation period. Used to calculate the dynamic and static evaluation indicators, the basic statement of the project's financial profitability analysis is ( ).

A, profit and loss account B, cash flow statement C, sources and application of funds table D, balance sheet

11, the economic evaluation of construction projects, when the proposed project can be considered acceptable, the NPV indicator at least how much ( )

A, equal to zero B, greater than zero C, less than zero D, does not matter

12, the economic evaluation of construction projects The evaluation index that reflects the actual profitability of the project and also shows the maximum interest rate that the project can bear is ( ).

A, net present value rate B, return on capital C, industry benchmark rate of return D, internal rate of return

13, by the government set up by the relevant agencies to prepare engineering quotas, indicators and other pricing basis for the attributes are ( ).

A, directive B, guiding C, reference D, empirical

14, the following about the province 03 version of the pricing rules, the statement is wrong ( ).

A, all the use of state-owned capital investment or state-owned investment in large and medium-sized construction projects must implement the bill of quantities

B, the construction project costing mode is divided into two modes of bill of quantities and fixed price

C, the bill of quantities of the bill of quantities of the bill of quantities of the bill of quantities of price method of materials and materials

D, comprehensive unit price method of the sub-item project Unit price using the full cost unit price in addition to fees and taxes

15, the use of uncertainty analysis of the project for economic evaluation of the method, ( ) is only used for financial evaluation.

A, break-even analysis B, sensitivity analysis C, probability analysis D, factor analysis

16, after the occurrence of the project contract price adjustment matters, the contractor to put forward the contract adjustment report should be implemented in accordance with the contract, the contract does not agree on the period of time, in accordance with the period of ( ) days.

A, 7 B, 10 C, 14 D, 15

17, the following costs are not night construction costs ( ).

A, night construction increase fee B, night subsidy fee

C, night construction lighting equipment amortization fee D, night construction lighting electricity

18, price fluctuations caused by the calculation of the contract price adjustment has a variety of methods, of which ( ) calculation is relatively convenient, the deviation is also smaller, the actual use of more.

A, the project cost index adjustment method B, the value of the formula method

C, the sampling material to make up the difference method D, the proportion coefficient method

19, inspection and test costs include ( ).

A, self-contained laboratory for the cost of materials and chemicals consumed in the test

B, new structures, new materials test fees

C, the construction unit of the materials with factory certification of inspection costs

D, the cost of destructive testing of components

20, the working day of the machine driver's labor costs are included in ( ). in.

A、Labor cost B、Machinery cost C、Construction technology measures cost D、Construction organization measures cost

21、The cost of living structures that must be erected by the construction company to carry out building construction belongs to ( ).

A, construction technology measures B, safety construction costs C, temporary facilities costs D, enterprise management costs

22, shorten the proportion of ( ) above, should be examined by the expert committee to validate its measures and corresponding costs.

A, 15% B, 20% C, 25% D, 30%

23, on the general contracting, the following statement is wrong ( ).

A, in accordance with the provisions of the Ministry of Construction Decree No. 124 occurs when the subcontracting of specialized projects, the general contractor may be subcontracted according to the subcontracting works 1% -3% of the cost of the general contracting services to the subcontractor

B, the general contractor to complete the scope of the project on their own temporary roads, fences, etc., should not be charged to the subcontracting unit

C, the general contractor shall not be charged to the construction unit. The general contractor shall not charge the construction unit for the cost of scaffolding, vertical transportation machinery and other measure items of the subcontracted works

D. The cost of finishing the as-built information involving the subcontracted works is included in the general contractor's service charge.

24, the construction cost of the tax should be based on the construction of the fixed fee rate, the tax is calculated on the basis of ( ).

A, direct costs B, direct costs + overhead C, direct costs + overhead + profit D, labor costs + machinery costs

25, the following costs do not belong to the basic reserve items are ( ).

A, the increased cost of design changes B, the increased cost of local foundation treatment

C, other costs of construction adjustments D, the cost of measures taken to prevent natural disasters

26, a project of the beginning of a one-time investment of 10 million yuan, the calculation of the period of each year's return of 2.5 million yuan, the calculation of the period of five years, the base rate of return of 10%, with net Present value to determine the project ( ).

A, feasible B, infeasible C, can be considered acceptable D, uncertain

27, the contract of the comprehensive unit price due to changes in the volume of work, in addition to the contract otherwise agreed upon, the implementation of the original comprehensive unit price is ( ).

A, new bill of quantities items caused by omissions in the bill of quantities

B, new bill of quantities items due to design changes

C, due to design changes outside the contractual range of increase or decrease in the amount of work

D, due to design changes within the agreed range of the contractual amount of increase or decrease in the amount of work

28, Machinery overhaul cycle and the life of the number of major repairs is the relationship between ( ).

A, overhaul cycle = life overhaul times B, overhaul cycle = life overhaul times -1

C, overhaul cycle = life overhaul times +1 D, can not be determined

29, () is the basis of engineering construction quotas.

A, construction quotas B, budget quotas C, proposed budget quotas D, proposed budget indicators

30, as a basis for rejecting a project or deciding whether to proceed, is ( ) the main role of investment estimates.

A, the planning stage B, the project proposal stage C, the feasibility study stage D, the evaluation stage

31, from the point of view of the management organization, the project cost information can be divided into ( ).

A, systematic and non-systematic B, documented and non-documented C, macro and micro D, fixed and mobile

32, the use of engineering construction quotas to calculate the cost of the project in terms of price formation, ( ).

A, between the national guide price and the national regulatory price B, belonging to the national regulatory price

C, between the national pricing and the national guide price D, belonging to the national guide price

33, the level of budgetary quotas should be ( ).

A, the average reasonable level of society B, the average advanced level of society

C, the reasonable level of society D, the advanced level of society

34, skilled labor quota does not include and in the budget quota must be considered in the use of labor, belong to ().

A, basic labor B, auxiliary labor C, super distance labor D, labor range difference

35, construction materials consumption, does not constitute a project entity amortization of materials belong to ().

A, the main materials B, auxiliary materials C, turnover materials D, other materials

36, in accordance with the relevant provisions of the residual value of small and medium-sized machinery rate is ( ).

A, 2% B, 3% C, 4% D, 5%

37, the preparation of the completion of the settlement, with the different forms of contract. The following statement is correct ( ).

A, the use of fixed-price contract, the contract price is the settlement price, no longer prepare the settlement

B, the use of adjustable-price lump-sum contract, on the basis of the total price of the original contract, all the changes in the price and quantity, add additions and deletions as a settlement of the project.

C, the use of unit-price contract, according to the actual amount of work done, with the preparation of the budget book method, to prepare a new settlement

D, the use of cost plus honorarium contract, according to the actual amount of work done and the agreed costing method of calculating the book of actual cost of the project, as the settlement price.

38, the feasibility study stage of the investment estimate error rate ()

A, ≥ ± 30% B, ± 30% or less C, ± 20% or less D, ± 10% or less

39, when the depth of the preliminary design is shallow, can not be accurately calculated to expand the amount of sub-items of the project, but the project is more mature technology used and there are indicators of the budget estimates of the corresponding project , can be used ( ) to prepare estimates of construction works.

A, budget estimate index method B, budget estimate fixed method C, similar project pre (settlement) method D, expand the unit price method

40, the construction contract documents in the order of interpretation is ( ).

A, notice of award, contract agreement, tender and annexes

B, construction contract special provisions, general provisions of the construction contract, tender and annexes

C, tender and annexes, drawings, bill of quantities

D, construction contract agreement, engineering quotations, drawings

41, when the construction project is completed and accepted. In order to identify the quality of the work, the necessary excavation and repair of hidden works, the cost shall be paid from ( ).

A、Construction unit management fee B、Construction unit basic reserve fee

C、Construction unit price increase reserve fee D、Survey and design fee

42、The contractor is required by the contractor to complete the contract outside of the piecemeal works, the contractor should be in the acceptance of the contractor's requirements within ( ) days of the number of laborers, the number of mechanical shifts and the unit price, the use of materials and the amount of construction visas to the contractor. Construction visa.

A、3 B、5 C、7 D、10

43、The Model Construction Contract for Construction Projects stipulates that within ( ) days of the occurrence of the claim event, the contractor shall give notice of intention to claim to the engineer.

A, 28 B, 10 C, 14 D, 56

44, in the engineering guarantee, the fundamental purpose of the guaranteed person to provide security is ( ).

A, the transfer of risk B, to meet the requirements of the other side of the credit guarantee

C, to protect their own economic interests D, to control the risk

45, the following is not a productive construction projects are ( ).

A, water irrigation system B, large logistics center C, thermal power plant D, homes for the elderly

46, citizens and legal persons can implement civil legal acts through an agent, the characteristics of the agent does not include ( ).

A, the agent to implement civil legal acts as a function

B, the agent in the name of the agent to engage in civil legal acts

C, the agent in the scope of the agency authority to independently express their own will

D, the legal consequences of the agency act by the agent

47, the bidding price verification, review all the offer The correctness of the data calculation and analyze the reasonableness of the composition of the offer belongs to the tender documents ().

A, technical evaluation B, business evaluation C, technical compliance evaluation D, business compliance evaluation

48, for the equipment installation project, should be organized trial, which ( ), by the contractor to organize the trial.

A, single-unit no-load trial B, single-unit load trial C, linkage no-load trial D, linkage load trial

49, the category of construction work is based on the size of the unit project, height, span, number of floors and the degree of difficulty of the construction technology to be divided into the following items to calculate the number of floors is ( ).

A, attic floor B, the area is less than 30% of the standard layer of the top floor

C, the height of 2.3 meters of the basement D, the height of 2.1 meters of the layer of technical equipment

50, from the nature of the project cost management agency, according to the parties on both sides of the *** with the application of mediation of disputes on the settlement documents is ( ).

A, civil mediation behavior B, judicial mediation behavior C, administrative mediation behavior D, according to the properties of the mediated works

51, according to "zhejiang province construction project costing management measures" stipulates that the provincial construction project costing management agency can entrust ( ) to prepare the supplementary basis of pricing.

A, municipal construction cost management organization

B, engineering cost consulting enterprises

C, bidding agent

D, municipal construction cost management organization or the relevant engineering construction unit

52, on the statute of limitations, the following statement is correct ( ).

A. China's General Principles of Civil Law provides that the period of limitation for requesting protection of civil rights from the people's court is 1 (2) years

B. If a person suffers bodily injury and asks for compensation, the period of limitation for the lawsuit shall be 1 year

C. If a lawsuit is filed for a dispute over a contract for the purchase and sale of international goods, the period of limitation for the lawsuit shall be 2 (4) years

D. Disputes over a contract for the importation of technology Apply for arbitration, the statute of limitations period of 2 (4) years

53, read the shortening of the duration of the increase in the cost of the project should not be charged at the same time ().

A, night construction increase fee B, civilized construction fee C, environmental protection fee D, the second handling fee

54, the cost engineer practice unit change, should be changed within ( ) days of the date of change for the change procedures.

A, 50 B, 60 C, 20 D, 30

55, a project to the bank loan of 10 million yuan, the annual interest rate of 12%, borrowing period of 5 years, ask the bank after 5 years need to repay the principal ( ) million.

A, 1600 B, 1762 C, 1974 D, 1573

56, a factory ordered machinery and equipment, a loan to the bank, the interest rate of 8% per annum, monthly interest, then its effective annual interest rate is ( ).

A, 9.6% B, 8.30% C, 8.24% D, 8.27%

57, under the bill of quantities pricing model, ( ).

A, the bidder bears the risk of quantity calculation and the bidder bears the risk of unit price

B, the bidder bears the risk of quantity calculation and the bidder bears the risk of unit price

C, the bidder bears both the risk of quantity calculation and the risk of unit price

D, the bidder bears both the risk of quantity calculation and the risk of unit price

58, as a basis for the fee collection The mechanical cost does not include ( ).

A, depreciation, B, major repair costs C, often repair costs D, large machinery and equipment dismantling costs

59, the contracting unit allocated to the contractor's provisions for the nature of the advance, to the implementation of the project, with the slow reduction of the project's reserves of the main materials required to offset the ( ) of the manner of deduction back one after another.

A, prepaid allowance B, project price C, project loan D, preparation of working capital

60, in accordance with the "construction project works unit pricing specification", the bill of quantities ( ).

A, must be commissioned by the bidder has the appropriate qualifications of the intermediary organization to prepare

B, can be used both material unit price method, can also be used comprehensive unit price method of pricing

C, is an integral part of the bidding documents

D, by the general description and the list of quantities of works in the sub-items of the two parts of the list of components

Two, multiple-choice questions (***30 questions, ****30 questions, ****30 questions, ****30 questions, ****30 questions, ****30 questions, ****30 questions, ****30 questions, ****30 questions. 2 points per question, ***60 points. The number of the correct answer options to fill in the corresponding position of the answer card. Select the right score, wrong choice does not score; under-selected no wrong item, each option scores 0.5 points.)

1, the control function of project cost is expressed in ( )

A, the control of quality B, the control of progress C, the control of investment

D, the control of cost E, the control of safety

2, the use of port of shipment on board the price of the seller's responsibility includes ( ).

A, in the specified period, is responsible for the contract at the port of shipment will be loaded on the designated ship

B, bear all the costs and risks of the goods before loading

C, is responsible for the chartering of the ship or booking of warehouses, and pay the freight cost

D, is responsible for insurance and insurance premiums

E, is responsible for the provision of the relevant shipping documents

3、According to the principle of capital preservation, when the project is completed and put into operation, the investment in fixed assets, investment direction adjustment tax and interest during the construction period form ( ).

A, fixed assets B, current assets C, intangible assets D, deferred assets E, tangible assets

4, in accordance with the objectives of financial evaluation, financial evaluation indicators can be divided into ( ).

A, static indicators B, dynamic indicators C, reflecting the profitability of the indicators

D, reflecting the ability to liquidate the indicators E, reflecting the ability to balance the foreign exchange indicators

5, the following costs belong to the reserve for price increases include ( ).

A, the cost of measures taken to prevent natural disasters

B, labor, materials, equipment, construction machinery, the price difference

C, acceptance of the completion of the project for the purpose of identifying the quality of the hidden works of the necessary excavation and restoration costs

D, the cost of construction and installation and other costs of construction costs adjustments

E, interest rates, exchange rate adjustment

6, the bill of quantities of the project set the rules for the project is to unify the bill of quantities of ( ) and is the basis for the preparation of the bill of quantities of the project. Project characteristics

A, project name B, project work content C, project code D, unit of measurement E, quantity calculation

7, project cost information is a combination of all the news about the characteristics of the project cost, the state of affairs and its changes. It is characterized by regionality, diversity, and ( ). Regional, diversity, specialization, systematic, dynamic, seasonal

A, specialized B, dynamic C, systematic D, seasonal E, compatibility

8, the standard quota consumption, is to provide for the consumption of the basic construction elements of the unit of qualified quality of the project of the basic construction elements of the number of labor, materials and mechanical benches of the standard, is to calculate the price of the building and installation products based. The so-called basic structural elements usually refers to ( )

A, sub-projects B, sub-projects C, decorative works D, structural works E, structural components

9, the use and role of the budget quota include ( ).

A, is the preparation of the construction of the main material plan B, is the basis for the construction unit of economic activity analysis

C, is the basis for the preparation of budget quotas D, is the basis for the preparation of the construction organization design

E, is the preparation of the budget estimate indicators

10, the main factors affecting the construction and installation of workers' labor unit price ( ).

A, the average social wage level B, the level of labor consumption C, living consumption index

D, the labor market supply and demand changes E, the government's social security and welfare policies

11, "Zhejiang Province, the unified classification of construction and installation materials coding and the base period price in 2003," the use of hierarchical classification coding system. The code is divided into five levels of 16 digital code length, which contains the characteristic code of the material of the following information ( ).

A, name B, brand C, specifications D, model E, unit of measurement

12, the preliminary feasibility study stage of the method of compiling investment estimates can be used ( ).

A, production capacity index method B, capital turnover rate method C, ratio coefficient method

D, indicator estimation method E, simulation estimation method

13, the content of the cost of the claimable can generally include the following aspects ().

A, labor costs B, material costs C, fees D, loan interest E, profit

14, small construction projects generally include final statement of accounts ().

A, the completion of the project overview table B, the completion of the financial statement

C, the construction project delivery of property summary table D, the construction project delivery of property details

E, the completion of the final account summary table

15, the main body of the construction market, consulting and intermediary services organization's role includes ( ).

A, coordination and constraints on the behavior of market players

B, to ensure fair trade, fair competition

C, the various aspects of the construction process for the overall arrangement

D, to promote market development, reduce transaction costs and improve efficiency

E, supervision of market activities, to maintain the normal order of the market

16, by the The nature of construction projects, capital projects can be divided into ( ).

A, new projects B, expansion projects C, relocation projects

D, remodeling projects E, restoration projects

17, on the bill of quantities pricing model and fixed price pricing model of the difference and linkage between the following statements are correct ( ).

A, all the use of state-owned capital investment or state-owned capital investment in large and medium-sized construction projects must implement the bill of quantities pricing.

B, the bill of quantities pricing model should be used in the bidding construction projects

C, the fixed price model can only be used for non-bidding construction projects

D, the bill of quantities project, basically a "comprehensive entity" to consider

E, the fixed price project contains a single content, generally only one project. Contains a single content, generally a project only contains a project content

18, the following cost items, belonging to the labor cost is ().

A, production workers during the study period of wages B, production workers sick leave in more than six months of wages

C, production workers to visit their families, D, production workers' basic wages

E, management personnel's basic wages

19, the cost of construction and installation of social security costs include ()。

A, labor insurance premiums B, pension insurance premiums C, property insurance premiums

D, unemployment insurance premiums E, medical insurance premiums

20, the following items, and the "construction project bill of quantities pricing specifications" compared to the list of new items in order to prepare a list of pricing guidelines include ( ).

A, the project code B, the project name C, the content of the project

D, the main elements that can be combined E, the corresponding quota subheading

21, the project cost index is used to study the following ( ) problem.

A, analyze the trend of price changes and their causes

B, estimate the impact of changes in construction costs on the macro economy

C, engineering contractors for both sides of the project valuation and settlement of an important basis

D, as a reference for the preparation of the fixed asset investment plan, used as a cost analysis of the construction

E, unit production capacity for investment analysis.

22, the contractor disputes the quality of the project, the following conditions ( ) of the project, the quality of the dispute according to the contract warranty contract.

A, has stopped B, has stopped building C, has been completed without acceptance but actually put into use

D, has been completed without acceptance and not actually put into use E, has been completed and accepted

23, on the cost of warranty, the following statements are correct ( ).

A, the contractor is not in accordance with the relevant state specifications for construction, resulting in quality defects, the contractor is responsible for the repair and financial responsibility

B, due to design defects caused by the design unit is responsible for the financial responsibility and maintenance

C, due to the quality defects caused by unqualified building materials, the contracting authority to bear the financial responsibility

D, due to the use of improper use of the unit caused by the loss of the problem, by the use of the unit is responsible for

E, due to earthquakes, floods, typhoons and other irresistible causes of damage caused by the construction unit is responsible for dealing with the problem

24, the characteristics of the project insurance include ( ).

A, the underwriting business is complex, high professional requirements B, engineering insurance field information asymmetry

C, engineering insurance can not be additional coverage D, insurance terms can not be changed

E, the subject matter of the insurance has incomplete

25, according to the nature of the industry and the characteristics of the division of the engineering and construction projects can be divided into ( ).

A, competitive projects B, basic projects C, public welfare projects

D, productive projects E, non-productive projects

26, the bidding documents in one of the following circumstances, the bidder is not admissible ( ).

A, no unit seal B, not delivered to the designated location C, not sealed in accordance with the requirements of the tender documents

D, late delivery E, no legal representative or his authorized agent to sign or seal

27, on the construction of construction costs, the following statement is correct ( ).

A, in the project pricing, the environmental protection fee should not be lower than the lower limit of the flexible interval rate

B, in the preparation of the budget estimates, the comprehensive rate should be taken by the median of the flexible interval rate

C, the comprehensive cost rate of housing repair works by the corresponding new construction projects of the second category of rates multiplied by the coefficient of 0.8

D, with a "Labor + machinery costs" as the basis for billing projects, comprehensive unit pricing, fees to "direct engineering costs + measures + comprehensive costs" as the basis for calculating multiplied by the corresponding rate

E, the preparation of construction budget, construction organization measures E. When preparing the construction budget, the construction organization measures should be calculated according to the median of the elastic interval rate

28, according to the information based on the length of the period of classification, the index can be divided into ( ).

A, point index B, daily index C, monthly index D, quarterly index E, annual index

29, engineering construction quota features include ().

A, scientific B, systematic C, advanced D, uniformity E, compatibility

30, construction budget estimates indicators include ().

A, mechanical equipment and installation project estimate indicators B, heating project estimate indicators

C, water supply and drainage project estimate indicators D, general civil engineering estimate indicators

E, tools and production furniture purchase cost estimate indicators

Construction project estimate indicators: civil engineering, water supply and drainage engineering, heating engineering, communications engineering, electrical lighting engineering <

Equipment Installation Project Estimation Indicators: Mechanical Equipment and Installation, Electrical Equipment and Installation, Work Tools and Production Furniture Purchase Costs

Reference Answers to Basic Theory of Engineering Costs

I. Single-Choice Questions

1, B 2, C 3, A 4, D 5, B 6, A 7, C 8, C 9, D 10, B

11, A 12. D 13, B 14, C 15, A 16, C 17, A 18, B 19, A 20, B

21, C 22, D 23, A 24, C 25, C

26, B 27, D 28, C 29, A 30, A

31, A 32, A 33, A 34, B 35, C

36, C 37, C 38, C 39, A 40, C

41, B 42, C 43, A 44, B 45, D

46, D 47, B 48, A 49, C 50, C

51, D 52, B 53, A 54, D 55, B

56, B 57, A 58, D 59, B 60, C

II, Multiple Choice Questions

1, CD 2, ABE 3, ACD 4, CDE 5, BDE 6, ACDE 7, ABCD 8, BE 9, BCD 10, ACDE

11, BCDE 12, CD 13, ABDE 14, DE 15, ABDE

16, ABCE 17, ABDE 18, AD 19, BDE 20, DE

21, ABC 22, CE 23, ADE 24, ABE 25, ABC

26, BCD 27, ABE 28, ACDE 29, ABD 30, BCD