问题 多项选择题

下列()灯具的固定安装方法符合规范。

A、灯具重量大于3Kg时,固定在螺栓或预埋吊钩上

B、每个灯具固定用螺钉或螺栓不少于2个;当绝缘台直径在75mm及以下时,采用1个螺钉或螺栓固定

C、室外墙上安装的一般敞开式灯具,灯头距地面距离为2.4m,并有泄水孔

D、当灯具距地面高度小于2.4m时,灯具的可接近裸露导体,采取接地(PE)或接零(PEN)保护,并有专用接地螺栓和标识

答案

参考答案:A, B, D

阅读理解

My friend Dr. Dong had a wonderful chance to go to Seattle to present a paper at a professional meeting. When he got back to Beijing, he told me his experience.

Dr. Dong enjoyed his first days very much. At the medical conference, he felt quite confident in his area of research and was able to perform well in his presentation. But after a few days, he began to feel uncomfortable. His medical English was fine, but the social communication skills were different.

He got more and more worried that he was misunderstanding simple English greetings and table talk conventions(习俗). When someone greeted him with, “Hi, how’s it going?” he thought they had asked him “Where are you going?” and answered with the name of the conference hall, only to get a surprised stare from them. At a western style dinner, a colleague asked, “So how’re you enjoyin’ the States?” he thought he heard, “how are you enjoying your steak?” and answered that he was eating chicken, not beef. That time, they smiled, and patiently repeated the question, then both laughed at the error.

By the end of the meetings, Dr. Dong felt a deep sense of “cultural stress” and was worn out from having to pay attention to so many new expressions and ways of dealing with things. He felt his handshake was not as firm as Americans’, found that people reacted unusually when he modestly insisted his English was not good after they complimented(称赞) him, didn’t know how to accept dinner invitations properly and therefore missed out on going to several lunches, and so on. Eventually, he was so confused that he felt the full impact of “culture shock”.

小题1:Why did Dr. Dong travel to Seattle?

A.To improve his spoken English.

B.To experience culture shock.

C.To give lectures on his research.

D.To attend a medical conference.小题2: Which of the following best describes Dr. Dong’s experience in Seattle?

A.Comfortable—very uncomfortable—uncomfortable.

B.comfortable—very uncomfortable—comfortable.

C.Comfortable—uncomfortable – very uncomfortable.

D.Comfortable—uncomfortable – very comfortable.小题3:Dr. Dong felt a deep sense of “cultural stress” mainly because_______.

A.he was too modest

B.he didn’t understand cultural differences

C.he lacked confidence

D.he was not good at English listening小题4:                                       

单项选择题