茯苓抗肿瘤的有效成分是（）
A.无机盐
B.茯苓酸、无机盐
C.茯苓多糖、茯苓素
D.有机酸、氨基酸
E.氨基酸
参考答案：C
—Could you tell me _________?
—More than a month.
A．when was Yangzhou-Taizhou Airport built
B．how often you go to Yangzhou-Taizhou Airport
C．how soon will Yangzhou-Taizhou Airport be built
D．how long Yangzhou-Taizhou Airport has been in service
哪个不是海南省的别称（）
A.琼州
B.椰城
C.鹿岛
