The depreciation entry, not the original value of the fixed assets, and the accumulated depreciation account should be credited plus debit minus, and the related depreciation should be charged to the current expense
Borrow administrative expenses - depreciation
Loan accumulated depreciation
This way you can.
Formation
The formation of tobacco stains is due to the human oral environment is acidic, long-term chemical reaction with alkaline residues in the mouth, such as food debris, attached to the surface of the teeth of the incomplete reaction of the derivatives, in fact, is also a salt compounds, especially cigarettes contain a "caffeine" in the acidic reaction in the oral cavity is easy to form teeth. The reaction in the mouth is very easy to form dental stains, every day smokers, the accumulation of tobacco stains is very serious, deposited on the surface of the teeth or roots, it became a tobacco stains.
Bringing harm
1, affecting aesthetics;
2, bringing unpleasant odor;
3, long-term not cleaned up, easy to lead to inflammation of the gums, the smoking population is far more likely to suffer from periodontitis than non-smokers.
How to get rid of
1, prescription: use white papaya slices to wipe the teeth 2 times a day 2 minutes each time adhere to January .
2, vinegar stains: each time before brushing, mouth a tablespoon of vinegar 1-2 minutes before brushing, 3-5 days after the majority of the smoke stains can be removed, but the key to less smoking or not smoking.
3, clean. Teeth. White. Clean. Fang insist on brushing teeth: tooth powder, containing Angelica dahurica, cold water stone and other ingredients, can be very good to remove smoke stains