有保温隔热性能的幕墙宜选用（）。A、防火玻璃 B、夹层玻璃 C、钢化玻璃 D、钢化中

(Megan and Kyle are talking before class begins.)

Megan: Hey, Kyle, are you ready for the big test today? I studied that list of words and the definitions(释义) for two hours last night.

Kyle: Oh, but I didn’t study at all. I just wrote all the answers on the palm(手掌) of my hand, see?

Megan: Kyle! You can’t do that! That’s cheating(作弊)！

Kyle: Hey, don’t worry. I won’t be caught. Mrs King will never know.

(Mrs King comes in and passes out the test papers.)

Mrs King: Okay, no more talking. You may begin.

(Kyle looks st his hand when the teacher isn’t looking.)

Joe: (raising his hand) Mrs King, may I have a drink? I have the hiccups(打嗝).

Mrs King: Yes, you may.

Kyle: (raising his hand) Mrs King, may I get a drink, too?

Mrs King: Kyle, what is that on your hand? I think you had better come to my desk.

Kyle: Oh no…

(After this, Kyle realizes his mistake and never cheats in exams again.)

小题1:根据Megan and Kyle are talking before class begins（在上课开始前）.及下文描述，可知这个故事可能发生在教室里。A          

小题2:根据Kyle: Oh, but I didn’t study at all. I just wrote all the answers on the palm(手掌) of my hand, see?可知他把答案写在了手上，选项中没有正确答案。

小题3: Where did the story possibly take place?

A．In the classroom.

B．In the library.

C．On the playground.

D．In the reading room.小题4: Where did Kyle write the answers?

A．On his hand.

B．In his notebook.

C．Megan told his classmates everything.

D．Joe told Mrs King about Kyle’s cheating.

海拔高度不超过1000m地区的220kV变电所，操作过电压要求的相对地和相间间隙分别为下列哪组数据？（）

A.150m，200m

B.100m，200m

C.180m，200m

D.200m，110m

交流异步电动机的能量转换是依靠( )的作用完成的。

A．电流

B．电压

C．电磁感应

D．电阻

静力压桩法与锤击沉桩相比，它具有施工（）和提高施工质量等特点。

A.无噪声

B.有振动

C.浪费材料

D.降低成本

E.沉桩速度慢

在带电的低压线路上工作时，应注意什么？