调整器的故障主要有哪些?

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问题:

调整器的故障主要有哪些?

考点:内燃机发电工内燃机发电工题库
题型:问答题 简答题

阅读理解。

     There are some easy things you can do to protect the environment and the earth. Choose ideas from the

list or come up with a few of your own.

     ●Plant flowers, grass or trees.

     ●Whenever you visit a park or beach, take away what you bring there-keep rubbish in a bag until you can

put it in a dustbin.

     ●Turn off the lights, TV sets when you leave the room. This saves a lot of electricity.

     ●Turn off the tap when you brush your teeth. You can save some water by not letting it run. Also, use a

glass cup instead of a paper cup because this saves paper.

     ●Keep the doors and windows closed in winter to keep warm air in.

     ●Give your old books and magazines to a library instead of throwing them away.

     ●Give your old clothes to poor children you know instead of throwing them away.

     ●Use both sides of paper.

     ●Stop pouring dirty water into the rivers or the lakes nearby.

     ●Encourage all your friends to do the same things you do to help protect the earth.

     You don't have to wait until Earth Day to do these things. Make every day Earth Day.

     If everyone makes a contribution to protecting the environment, the world will become much more beautiful.

1. From the above, we know that this is _____.

A. a sign

B. a notice

C. an advertisement

D. a proposal

2. The writer tells us _____.

A. to throw rubbish into a dustbin

B. to pour dirty water into the river

C. to save water by letting it run while we are brushing our teeth

D. that we can't do all these things until Earth Day

3. We can _______ to save paper.

A. use a paper cup

B. use both sides of paper

C. give old books to a library

D. pick up waste paper at school

4. Which of the following is WRONG according to the writer?

A. Turn off the lights when you leave the room.

B. Close the doors in winter.

C. Use a paper cup when you brush your teeth.

D. Give your old clothes to the poor children.

5. The main idea of this passage is how to _____.

A. save money

B. save water and electricity

C. make better use of old things

D. protect the earth

题型:问答题 简答题
求如图所示的交变电流的有效值,其中每个周期的后半周期的图象为半个周期的正弦曲线(   )

A.5A

B.5A

C.5/2A

D./2A

题型:问答题 简答题

某病人,女,36岁。一个月前因乳腺癌进行手术。术后一般情况良好,但近一周来该病人情绪低落,常常独自流泪,对自己的生存非常悲观,各种兴趣下降,睡眠浅,易早醒,甚至出现轻生的念头:

对于长期这种情绪反应所造成的后果,以下哪项是错误的()

A.使病人的免疫力下降

B.增加原有疾病治疗的难度

C.增加引发新疾病的可能性

D.增加病人所能获得的社会支持

E.妨碍病人与医务人员的合作

题型:问答题 简答题

读中国东部沿海图,回答问题。

(1)威海市国际中学的王杨同学“五一”假期乘火车先去泰安、再去看世博会。从威海乘火车依次经过桃威线、蓝烟线、_______线至济南,沿_______线到达泰安,再继续沿本线最终到达_______(城市)。

(2)王林同学去泰安的旅途中,看到如下现象:威海市郊区槐树刚好能见到花蕾,潍坊市郊区槐花盛开,泰安市郊槐花已败落。这种现象产生的原因是________。登泰山接近山顶时,又发现山上的槐树花蕾与威海市郊的差不多,其原因是________。

(3)王林同学在泰安旅游期间吃的多是面食,而到了世博会举办城市,吃得则多是大米,面食极少,你能试着分析一下其中的原因吗?

___________________________________________________________________________________________

题型:问答题 简答题

同时符合下列哪些条件,可以使用一张带电作业工作票?()

A、由同一个监护人监护的工作

B、在同一变电站或发电厂升压站内进行

C、依次进行的工作

D、同一类型的带电作业工作

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