接触器在运行中产生很大噪声的原因是什么?

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问题:

接触器在运行中产生很大噪声的原因是什么?

考点:火电电力职业技能鉴定考试水电自动装置检修工(技师)水电自动装置检修工(技师)题库
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阅读下面短文,掌握其大意,然后从36—55各题所给的四个选项(A、B、C和D)中,选出最佳选项。
I am a mother of three and have recently completed my college degree. My teacher’s last 36  of the term was called “ Smile”. I am a very friendly person and always 37  at everyone. So I thought this would be very 38 .
Soon after we were given the project, my 39  went out to McDonald’s. We were waiting to be 40 , when all of a sudden everyone around us began to 41 , and even my husband did. There standing behind me were two homeless men 42 .
As I looked down at the short gentleman with 43  eyes, he said, “ Good day.” The second man stood behind his friend. I 44  the second man was mentally challenged(智障)and the blue-eyed gentleman was his helper.
The young 45  at the counter asked him what they wanted.
He said, “ Coffee is all ,Miss.” Because that was all they could 46 .
I smiled and asked the young lady to give me two more breakfast meals on a 47tray(托盘). I then said to the men, “ I did not do this for you. God is here 48  through me to give you hope.”
When I joined my husband, he smiled at me, saying, “That is 49  God gave you to me, Honey, to give me hope.”
I returned to 50 with this story in hand. I 51 “my project” and the teacher read it. Then she looked up at me and said, “ Can I 52  this with the class?”
I slowly 53 and she began to read and that was when I knew that we, as human beings, share this to help people and to be 54.
In my own way I had 55 the people at McDonald’s, my husband, sons, teacher, and every person that shared the classroom on the last night I spent as a college student.
小题1:
A.question
B.project
C.class
D.expression
小题2:
A.smile
B.laugh
C.look
D.stare
小题3:
A.difficult
B.funny
C.important
D.easy
小题4:
A.teacher
B.classmates
C.family
D.children
小题5:
A.ordered
B.served
C.paid
D.called
小题6:
A.run away
B.crowd in
C.shout out
D.move away
小题7:
A.in surprise
B.in silence
C.in rags
D.in fear
小题8:
A.tearful
B.blue
C.closed
D.black
小题9:
A.realized
B.accepted
C.permitted
D.admitted
小题10:
A.helper
B.gentleman
C.lady
D.friend
小题11:
A.drink
B.want
C.take
D.afford
小题12:
A.big
B.separate
C.flat
D.round
小题13:
A.working
B.going
C.getting
D.carrying
小题14:
A.how
B.when
C.where
D.why
小题15:
A.college
B.home
C.church
D.McDonald’s
小题16:
A.put up
B.handed out
C.handed in
D.put away
小题17:
A.publish
B.share
C.copy
D.keep
小题18:
A.turned
B.left
C.shook
D.nodded
小题19:
A.forgiven
B.thanked
C.helped
D.remembered
小题20:
A.touched
B.knew
C.forgot
D.recognized
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小李和老张打赌扔一枚质地均匀的硬币,扔出的结果是有字的一面向上,从概率理论角度来讲,这一结果称为一个()。

A.试验

B.事件

C.样本

D.概率

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三腔二囊管止血法注意事项

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毛 * * 在1945年8月说:“中国的局面,联合政府的几种形式,现在是独裁加若干民主,并将占相当长时期,我们还是要钻进去给蒋介石洗脸(即改造),而不是要砍头。这个弯路使我们党在各方面达到成熟,中国人民更觉悟,然后实现新民主主义的中国。”当时中共的设想是()

A、通过重庆谈判,建立国共两党联合执政的政府

B、希望通过和平激进方式争取民主

C、控制联合政府,打破 * *

D、建立社会主义新中国

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