隔离开关与断路器串联使用时,送电的操作顺序是()。A.先合上隔离开关后合上断路器 B

题型:单项选择题

问题:

隔离开关与断路器串联使用时,送电的操作顺序是()。

A.先合上隔离开关后合上断路器

B.先合上断路器后合上隔离开关

C.同时合上断路器和隔离开关

D.无先后顺序要求

考点:电工进网证考试电工进网证(高压类)电工进网证(高压类)题库
题型:单项选择题
During my second year of nursing school, our teacher gave us a quiz (小测验). I was a hard-working student and I did well      all the subjects. I finished the questions successfully until I read the     one, “What is the first name of the     who cleans the school?”
I saw the cleaning woman every day. She is short and about 60 years old. She has dark hair. But      would I know her name? I have      talked with her before. In fact, I’ve never even thought about      to her! I stared at (盯着) my paper and started to feel rather guilty (惭愧的). Finally, I handed in my paper     writing the answer to the last question.
Before the class ended, one student      the teacher if the last question would count (计入) into our grade. “In your life,” the teacher said, “you will     many people. All are      . They deserve (值得) your attention (注意) and care, even if all you do is just      and saying hello.”
I’ll never      that lesson. Everyone deserves our attention and we    try to get to know all the people who work and live around us. That was the most important   of my life. Later that day, I    that the cleaning woman’s name was Dorothy.
小题1:
A.inB.of C.at D.on
小题2:
A.firstB.secondC.nextD.last
小题3:
A.girlB.boyC.womanD.man
小题4:
A.whyB.whereC.whenD.how
小题5:
A.neverB.oftenC.sometimesD.always
小题6:
A.to talkB.talkingC.talkD.talked
小题7:
A.inB.outC.withoutD.with
小题8:
A.askedB.answeredC.saidD.read
小题9:
A.meetB.hurtC.moveD.te ll
小题10:
A.expensiveB.importantC.beautifulD.lucky
小题11:
A.laughingB.studyingC.thinking D.smiling
小题12:
A.learnB.rememberC.forgetD.know
小题13:
A.mustB.canC.have toD.should
小题14:
A.luckB.l essonC.workD.day
小题15:
A.sawB.listenedC.hearD.knew
题型:单项选择题

My brother used to __________, but now he is helpful to others.

A.get trouble

B.get into trouble

C.getting into trouble

D.getting trouble

题型:单项选择题

一个直角三角形,有一个锐角是35°,另一个锐角是______.

题型:单项选择题

幕上急性硬膜外血肿最多见于( )

A.颞区
B.额顶区
C.顶枕区
D.额极区
E.矢状窦区

题型:单项选择题

采用软件工程的方法开发软件,各阶段都有相应的文档,容易进行维护工作,这是一种()维护。

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