无纵向加速断开修正的地平仪在飞行中会产生误差下列（）种说法正

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问题单项选择题

无纵向加速断开修正的地平仪在飞行中会产生误差下列（）种说法正确。

A.飞机加速飞行和减速飞行会引起地平仪的上仰或下俯误差

B.飞机加速飞行和减速飞行会引起地平仪的倾斜误差

C.飞机加速飞行和减速飞行会引起上仰和倾斜误差

答案

参考答案：A

阅读理解

阅读短文，选择正确答案。

My father has a good friend in his factory. He's an old man. All of the children like him. We call him Uncle

Mike. He is from Canada. He lives in Beijing. He can't speak Chinese. We teach him Chinese. He teaches us

English. He doesn't work on Sundays. Look! He's mending (修理) a kite at home. He likes watching TV with hisson and daughter in the evening.

1. Uncle Mike and my father work in the same .[ ]

A. farm

B. school

C. factory

2. Uncle Mike comes from .[ ]

A. Canada

B. China

C. England

3. We teach Uncle Mike .[ ]

A. English

B. Japanese (日语)

C. Chinese

4. Uncle Mike likes . [ ]

A. mending a kite

B. watching TV

C. drawing

5. Uncle Mike's good friend.[ ]

A. I am

B. My father is

C. My mother is

单项选择题

绝缘导线采用敷线修补时，每端缠绕长度超过损伤部分不小于（）mm。

A.50

B.100

C.30

D.200