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问题 单项选择题

敷设电缆时，应防止电缆扭伤和过分弯曲，电缆弯曲半径与电缆外径的比值，35kV及以下交联聚乙烯绝缘三芯电缆为（）。

A.5；

B.10；

C.20；

D.30。

答案

参考答案：B

填空题

根据要求写出下面词的适当形式。

1. —How many  ______ (月份) are there in a year?

    —Twelve.

2. It's Lucy's ______ (女衬衫). It's very new.

3. It's too far away from our school. Let's ______ (乘) a bus to get there.

4. Lucy spends half an hour a day ______ (看) TV.

5. Listen! They are ______ (聊天) with each other in the room.

6. T______ is the third day of a week.

7. Millie isn't pretty, but she is p______, we all like her very much.

8. The windows and the doors are ______ (not open). It's hot (热的) in the room.

9. June 1st is ______ (child) Day. My daughter likes that day best.

10. My Cousin Kitty wants to ______ (be) a teacher like her mother.

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单项选择题 A1/A2型题

含抗胰蛋白酶因子的是（）。

A.大豆

B.大米

C.菠菜

D.小麦

E.玉米
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