提高避雷器的参考电压能够()。A.降低避雷器的比能量要求 B.提高避雷器的比能量要求

题型:多项选择题

问题:

提高避雷器的参考电压能够()。

A.降低避雷器的比能量要求

B.提高避雷器的比能量要求

C.降低避雷器的制造难度

D.提高避雷器的制造难度

考点:电网调度运行人员考试电网调度保护考试电网调度保护考试题库
题型:多项选择题

在下列的代码段中填入一个适当的语句,使其表示为从输入流中能读取对象(注:FileInputStream的形参为“thetime”)。   File InputStream in= 【 】 ;   ObjectInputStream s=ObjectInputStream(in);   String today=(String)s.readObject( );   Date date=(Date)s.readObject( );

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阅读理解 。

     Jim went into the station soon after five o'clock in the afternoon. This is a bad time to travel in Paris,

both by bus and by train, because lots of people go home from work at this hour. He had to join a long

queue of people who were waiting for tickets. When at last his turn came, he got the right ticket. By

asking several people the way, he also found the right platform (站台). It was crowded and he was not

able to get on the first train, but he was able to move nearer to the edge (边) of the platform to be ready

to get on the next one. When the train came in, Jim was thrown onto the train by the rush of the people

behind. The doors closed and the train moved off. Since he was unable to see the names of the stations

where the train stopped, he had to count the number of stops so that he knew where to get off. His station was the seventh along the line.

     When the train reached the seventh station, Jim got off. But he was surprised to see that he had got

off at a station that he had never heard of. A man on the platform told him that he had traveled on a train

in the wrong direction.

1. Why did Jim go to the station?

A. To take a train.                    

B. To meet his friends.

C. To say goodbye to his friends.      

D. To go home from work.

2. What did Jim find when he arrived at the station?

A. Only a few people there.

B. A few people waiting to buy tickets.

C. Many trains there.

D. Many people waiting to buy tickets.

3. What did Jim have to do before he bought the ticket?

A. To meet many people.              

B. To wait in a long queue.

C. To talk to some people.            

D. To ask the way to the train.

4. Why didn't Jim see the names of the stations?

A. He was too lazy to see them.  

B. They were too small for him to see them.

C. He was too busy to see them.  

D. It was too crowded for him to see them.

5. Who made Jim take the wrong train?

A. The train driver.  

B. The ticket seller in the station.

C. All the people at the station.

D. The people behind him on the platform.

题型:多项选择题

机体清除氨的主要方式不包括()。

A.合成尿素

B.合成谷氨酸和谷氨酰胺

C.肾脏排泄

D.肺部呼出

E.皮肤蒸发

题型:多项选择题

PPPoE会话阶段可能会出现的报文有()。

A.Config-Request报文

B.Config-Ack报文

C.Config-Nak报文

D.Config-Reject报文

题型:多项选择题

人类历史上,通过临床观察发现的第一个职业肿瘤是()

A.石棉矿工-胸膜间皮瘤

B.扫烟囱工-阴囊癌

C.接触放射性物质人员-肺癌、白血病

D.生产品红染料工人-膀胱癌

E.家具工-鼻窦癌

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