题目内容

完全可竞争市场及沉没成本是()理论的分析中心

A. SCP理论
B. 产业结构
C. 可竞争理论
D. 产业组织

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【B4】

A. said
B. spoke
C. shouted

In school the pupils can't learn a foreign language well because ______.

A. they have no recorders
B. they have too much time for it
C. they are busy with other subjects

Breakfast is very important, but you don't have to eat a lot.

A. Right.
B. Wrong.
C. Doesn't say.

More and more people nowadays have cereals with milk for breakfast.

A. Right.
B. Wrong.
C. Doesn't say.

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