题目内容

A．onB．inC．ofD．under

A. on
B. in
C. of
D. under

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价格机制引导资源配置是通过价格的()功能来实现的。

A. 激励
B. 标价
C. 预期
D. 信号

A．mixedB．mixtureC．mixingD．mixer

A. mixed
B. mixture
C. mixing
D. mixer

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A. They
B. A lot of
C. Much
D. Many

A．glassB．tinC．plasticD．steel

A. glass
B. tin
C. plastic
D. steel