[28~32]可鉴别的药物
水解后重氮化-偶合反应（）
A.维生素A
B.贝诺酯
C.地西泮
D.可待因
E.维生素B1
参考答案：B
Do you like ________?[ ]
A. vegetable
B. meats
C. vegetables
Tom didn’t go hiking with his classmates his illness.
A. because B. because of C. since
