题目内容

In an efficient market．

A. profit opportunities remain a very brief time.
B. only experts can grasp the profit opportunities.
C. people without insights don't get much profit.
D. anyone who knows the hot tips can gain profit.

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The following countries are the rising stars in the aerospace industry EXCEPT

A. Russia.
B. India.
C. France.
D. China.

正确答案是（）

A. On the contrary
B. On the average
C. On the whole
D. On the other hand

正确答案是（）

A. capabilities
B. responsibilities
C. proficiency
D. efficiency

正确答案是（）

A. if only
B. now that
C. so that
D. even if