题目内容

在完全竞争市场上,厂商可以通过提高价格实现增盈或减亏。

A. 对
B. 错

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市场的竞争程度越高,则市场的经济效率越高;市场的垄断程度越高,则经济效率越低。

A. 对
B. 错

A wise mother never_______her children to the slightest possibility of danger.

A. expires
B. exposes
C. expects
D. expands

The National Security Council has met to discuss ways of preventing a military .

A. conflict
B. contrast
C. contrary
D. category

You make friends with people and then make unreasonable demands so that they you.

A. relieve
B. release
C. reject
D. reflect

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