Oranges are good fruit because they contain a lot of _____.
A: vitamin A
B: vitamin B
C: vitamin C
A: vitamin A
B: vitamin B
C: vitamin C
举一反三
- Fresh fruit and vegetables______. A: contain more vitamin C than any other food B: decrease our resistance to colds C: contain every kind of vitamin D: increase our susceptibility to influenza
- From the conversation, we know （） is very important for good eyesight. A: Vitamin A B: Vitamin B C: Vitamin C D: Vitamin D
- Whicn vitamin can reduce the curative effect of levodopa() A: vitamin A B: vitamin B1 C: vitamin B2 D: vitamin B6 E: vitamin B12
- Night blindness is mainly caused by lack of( ).() A: Vitamin A B: Vitamin B1 C: Vitamin D D: Vitamin E
- Scurvy is caused by the lack of ( ). A: Vitamin A B: Vitamin D C: Vitamin C D: Sex hormones