电力系统工频过电压的产生原因及防范措施有哪些?

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问题:

电力系统工频过电压的产生原因及防范措施有哪些?

考点:变电站值班员考试变电站值班员考试题库
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------You’ve left the light on.

------Oh, so I have. _____________to turn it off.

A.I’ll go

B.I’ve gone

C.I go

D.I’m going

题型:问答题 简答题

阅读理解.

     Every day,all across the nation,as many as one in four children refuses to go to school.The

reasons are various."School Refusal",formerly known as"School Phobia",is an actual

anxietybased disorder.Many children are vague about their complaints and unable to be sure

what is making them anxious,so it is sometimes regarded as typical childhood will fullness.

However,the effects of constant school refusal can be farreaching for your child's education.

     So,where's the line between what's normal and what's not?"You need to look at whether

it is affecting the child or family's normal life,"explains Christopher Kearney,Ph.D.In other

words,if a child's grades are suffering from frequent absences or a parent's job is disturbed,

it is time to look closely at the issue.Parents should listen carefully to children who say they

can't go to school because of "untestable things"such as stomachaches or headaches.While

these complaints alone don't necessarily indicate school refusal,there may be deeper problems

if combined with general complaints about school,talks of threats at school and so on.

     There are different kinds of behavior in school refusal.Some children are influenced by their

friends who skip school to hang out with their friends,showing a sense of rebellion(叛逆).

Some children cling to their mothers,screaming at the thought of having to enter the school

building.

     However,that doesn't mean that getting a child back into the classroom is impossible.

According to Maryann Roth,a school psychologist and guidance counselor(顾问),parents

should attempt to make the child get back to school,no matter how hard it is.Working closely

with school officials and possibly a specialist to create a plan is a necessary step.

1.The underlined word"vague"(Paragraph 1)is closest in meaning to ________.

A.irregular

B.unclear

C.curious

D.unusual

2.According to Paragraph 2,the real reason of “School Refusal”may be that the children ________.

A.are suffering from illness

B.are afraid of endless tests

C.want to stay with their parents

D.feel bored and unsafe at school

3.When facing“School Refusal”of their children,parents should ________.

A.take the problem seriously if their daily life is disturbed

B.discuss the seriousness of the problem with their children

C.take their children to see the doctor immediately

D.keep their children away from their rebellious friends

4.The passage intends to ________.

A.explain that “School Refusal” is a symptom of an illness

B.explain the phenomenon of “School Refusal” and how to treat it

C.remind parents to take good care of their children

D.explain that “School Refusal” is normal and not serious

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金融机构为不出示本人身份证或者不使用本人身份证件上的姓名时,金融机构为其开立个人存款账户的,由中国人民银行给予警告,可以处()的罚款。

A、1000元以上5000元以下

B、2000元以上5000元以下

C、10000元以上50000元以下

D、100元以上500元以下

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设计文件更改后,不得降低(),这是设计文件更改的原则之一。

A.产品质量

B.零件尺寸的公差值

C.产品数量

D.供量指标

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1770—KF2面板()状态指示灯亮时表示1770—KF2准备传送信息

A、XMTG

B、RCV

C、RD

D、ACTV

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