2. What kind of boiled water is good for health? C, naturally cooling warm boiled water to 20-25 DEG C.
3. Water is the most abundant substance in human body, accounting for about 65% of human body weight.
4. In life, which of the following nutrients, sugar A, is the main source of human heat energy?
5. Generally speaking, which of the following foods is low in protein? Vegetables and fruits
6. In order to prevent food poisoning, we should do the following: A Eat less cold salad.
7. What is the main food source of vitamin C? A vegetable. fruit
8. What is the highest content in human cells? a glass of water
9. What is the cause of intestinal infectious diseases? Eat unclean food.
10, what is the richest calcium content in food? A glass of milk
1 1, anemia is a common disease in children, which of the following minerals may be related to it? B iron
12, which organ of the human body is most seriously damaged by long-term heavy drinking? hepatitis B
13, what elements in vegetables can promote gastrointestinal peristalsis and facilitate food digestion? cellulose
14, what is the most suitable cooking method to minimize nutrient loss when eating meat food? steam in clear soup
15, China Nutrition Society proposed that the thickness of C should be matched and the food should be diversified.
16, poor learning ability and inattention, which substance may be related to it? zinc (Zn)
17, what are the disadvantages of refined rice flour? Vitamin b family
18, what are the wonderful uses of salt in daily life? All above d
19, instant noodles should not be used as staple food for a long time. The reasons are as follows:: (1) The nutritional components of D are single.
20. Water is one of the essential nutrients for human body. We cannot live without water every day. If we are thirsty at school, what is the best water for you to drink? purified water