试题与答案

继电保护、自动装置、控制、信号的二次回路线路电缆芯线截面的选择尚应符合()要求。A.

题型:多项选择题

题目:

继电保护、自动装置、控制、信号的二次回路线路电缆芯线截面的选择尚应符合()要求。

A.电流回路:应使电流互感器的工作准确等级,符合规范相应的规定。短路电流倍数无可靠数据时,可按断路器的断流容量确定最大短路电流,电缆芯线截面不应小于2.5mm2

B.电压回路:当全部保护装置和安全自动装置动作时(考虑到发展,电压互感器的负荷最大时),电压互感器至保护和自动装置屏的电缆压降不应超过额定电压的3%。电缆芯线截面不应小于1.5mm2

C.操作回路:在最大负荷下,操作母线至设备的电压降,不应超过额定电压的 10%

D.强电控制回路,不应小于2.5mm2

答案:

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参考答案:A,B,C,D解析:《行政处罚法》第39条规定:"行政机关依照本法第38条的规定给予行政处罚,应当制作行政处罚决定书。行政处罚决定书应当载明下列事项:(一)当事人的姓名或者名称、地址;(二)违反法律、法...

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题型:阅读理解

     As I was leaving to meet Lynne, my roommate told me that I'd better take some money, but I didn't

listen to him. I thought that Lynne would pay because she had invited me.

     I arrived at the restaurant exactly on time. I'd been told that Americans expect you to be on time.

Lynne and I sat at a table in the corner of the restaurant and a waitress came and took our order. The

dinner was a great success. I talked a lot about Saudi Arabia and Lynne told me all about herself. After

two hours the waitress finally came and asked if we wanted one check or two. Lynne said two. We

went to the cashier and Lynne paid her check. I was embarrassed (尴尬) when the cashier gave me my

bill. I had no money to pay for my meal. Then I had an idea. I pretended to look for something in my

pockets and said,"Oh!I forgot my money! Can I call my roommate, please?" The cashier showed me

where the phone was and I quickly called my roommate.

     In a few minutes he arrived with some money,but he couldn't hide how he felt. He laughed all the way

home.

     Now, I think it's funny too. But at the time I was terribly embarrassed. I thought that an invitation to

have dinner meant the same thing in the United States as in my country. I guess you have to understand

that your customs are only your customs. When you visit a foreign country, you have to learn about their

customs, too.

1. The writer's roommate advised the writer to take some money with him to________.

A. pay for the table

B. share the cost of the meal

C. invite Lynne to dinner

D. pay for the restaurant

2. The roommate laughed all the way home because the writer________.

A. was embarrassed when he couldn't pay his breakfast

B. telephoned him to bring some books to him

C. hadn't told Lynne the truth

D. would not listen to him when he left the house

3. The writer and Lynne________.

A. enjoyed their meal very much

B. successfully finished their meal

C. had a talk for two hours

D. traveled to Saudi Arabia together

4. Customs can be ________in different countries according to this passage.

A. quite the same  

B. entirely different

C. close to each other  

D. very similar

5. Why didn't Lynne pay the check for the writer?

A. Because she didn't have enough money with her.

B. Because she didn't have the meal.

C. Because she thought it was natural for people to pay their own check.

D. Because she wanted to embarrass the writer.

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