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问题 多项选择题

目前，城市轨道交通线网方案编制的基本方法主要有（）。

A．集中锚固

B．枢纽锚固

C．间接锚固

D．预先锚固

E．走廊锚固

答案

参考答案：B, D

解析：

本题考核的是城市轨道交通线网方案编制的基本方法。目前，线网方案编制的基本方法主要有两种：枢纽锚固和走廊锚固。

阅读理解

阅读理解。

     Look at these things. This is Sam's ID card. And this is Jim's watch. That's Mary's key. Gina's

notebook is over there. Look! What's that on the floor? Oh, it's a gold ring. It's Jenny's ring. It's very

nice.

1. Is Jenny's ring very nice?

A. Yes, she is.

B.  No, she isn't.

C. Yes, it is.

D. No, it isn't

2. _____ notebook is over there.

A. Jim's

B. Gina's

C. Jenny's

D. Mary's

3. That is Mary's _____.

A. notebook

B. key

C. ID card

D. watch

4. Sam's name is on his _____.

A. ring

B. watch

C. key

D. ID card

5. Is this Jim's watch? 

A. Yes, it is.

B. No, it isn't.

C. Yes, he is.

D. No, he isn't.
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单项选择题

在柴油机中气阀传动机构中，凸轮机构的作用是将凸轮转动转变成为顶杆的（）。

A、摆动

B、往复运动

C、转动

D、摇动
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