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问题 多项选择题

产业结构政策通常包括（）.

A.幼小产业保护政策

B.主导产业选择政策

C.战略产业扶植政策

D.衰退产业调整政策

E.产业规制政策

答案

参考答案：A, B, C, D

选择题
— Did you see who the driver was?
— No, so quickly _____ that I couldn't get a good look at his face.

A. did the car speed by
B. the car sped by
C. does the car speed by
D. the car speeds by
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选择题

在下列物质中，不能由两种单质直接通过化合反应制备的是

A．FeCl3

B．Na2O

C．Na2O2

D．FeCl2
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