既能消食积,又能健胃的药物是()
A.山楂
B.麦芽
C.谷芽
D.鸡内金
E.神曲
参考答案:B, C, D, E
99. If you study harder, you will catch the others in the class.
A.up
B.up with
C.up of
D.To
简述C值矛盾,并举例说明。