好多同学为家乡经济成为全国的中心感到自豪。下列造就这成果的历

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问题选择题

好多同学为家乡经济成为全国的中心感到自豪。下列造就这成果的历史背景（南朝时期的江南）哪个是不正确[ ]

A．南方生产技术比北方先进

B．南方的社会环境比较稳定

C．北方大量人口南迁

D．北方先进生产工具传入南方

答案

答案：A

填空题

用括号内所给动词的适当形式填空。

1. She ________ (write) twenty pop songs which are liked by fans by the end of last year.

2. ________ (quarrel) with others isn't good manners for everyone.

3. —_______ the price ________ (include) coffee and hamburgers? －I'm afraid not.

4. The teacher told us that three quarters of our earth ________(cover) by water.

5. Everyone knows that the disabled mustn't ________ (laugh) at.

6. We should try our best to prevent the air pollution ________ (live) a happy life.

7. With all lights on, the hall ________ (become) as bright as day when we arrived.

8. How soon do you think we ________ (get) to the hotel?

9. Mr. Green told me that his family ________ (go) for a holiday the next week.

10. —Did you see him come in just now? —No, I ________(type) a letter all the time.

单项选择题

液压油泵出口压力低至（）时联动备用液压油泵。

A.1150psi

B.1250psi

C.1350psi

D.1450psi