题目内容

1.市场是商品经济的产物,哪里有商品和 ,哪里就会有市场。

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3.竞争是市场的核心。

A. 对
B. 错

The police have taken every security measure to __________ the jewellry shops from being robbed.

A. preserve
B. pretend
C. prevent
D. promise

He has an open__________ on the subject, so you cold easily persuade him.

A. mind
B. brain
C. sense
D. head

Would you__________ holding his box for me while I open the door?

A. like
B. mind
C. matter
D. object