下列关于履带式起重机安全使用的叙述,哪些是正确的?()A.行走道路坚实平整  B.禁

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问题:

下列关于履带式起重机安全使用的叙述,哪些是正确的?()

A.行走道路坚实平整 

B.禁止斜拉 

C.禁止斜吊 

D.严禁起吊埋设在地下的重物 

E.严禁起吊凝结在地面上的重物

考点:安全员安全员综合练习安全员综合练习题库
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香料烟也属于(),是混合型卷烟的原料之一。

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When I was young,my father told me that little acts of kindness may give one great happiness. Since then I have always tried to help people in   1  .
One hot summer afternoon, I was  2  down the highway to New York when another car suddenly   3  into my lane(车道). My car was in the far right lane,so it ran onto the roadside. As a(n)   4   driver,I moved my car quickly and skillfully back onto the highway without causing any accident.
I was   5  with that driver,but I thought that he just did not pay attention to(注意) the lane change, and he  6  did not do that on purpose(故意).The car ran away  7  after cutting me off. Very soon it disappeared from sight. After a while,I came around a curve(弯道) and found the  8 car. The driver was walking along the roadside. He was an elderly man and looked  9  . As there was no telephone nearby and the nearest services were twenty miles away, I decided to    10   and see what the problem was.
The man’s car had a flat tire(瘪胎). Although he had another tire,he had nothing to work with. I decided to  11  him. I changed the tire for him and allowed him to sit in my air-conditioned car while I did it. Fifteen minutes later,I 12  the work. I was hot and tired,but I really felt  13  after an act of kindness to the man who had earlier  14  my car run off the road.
You can really enjoy great  15 from kindness acts, so always lend your hands to others in trouble.
小题1:
A.needB.schoolC.dangerD.summer
小题2:
A.walkingB.ridingC.runningD.driving
小题3:
A.fellB.jumpedC.cameD.climbed
小题4:
A.newB.experiencedC.frightenedD.cheerful
小题5:
A.unhappyB.interestedC.kindD.friendly
小题6:
A.evenB.certainlyC.almostD.simply
小题7:
A.quicklyB.quietlyC.politelyD.carefully
小题8:
A.newB.redC.sameD.other
小题9:
A.excitedB.relaxedC.surprisedD.worried
小题10:
A.stayB.searchC.stopD.hide
小题11:
A.giveB.trainC.helpD.encourage
小题12:
A.beganB.finishedC.tookD.continued
小题13:
A.goodB.sorryC.angryD.shy
小题14:
A.keptB.madeC.watchedD.heard
小题15:
A.friendshipB.successC.excitementD.happiness
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  本文是诗人置个人生死于度外,用爱和恨、痛     苦和希望编织成的一首热爱祖国、憧憬光明的诗篇。它带给我们许多启发,告诉了我们许多人生道理。你能说说吗?    

甲生:诗人告诉我-- 宁愿站着死,绝不跪着生。    

乙生:诗人告诉我-- 一经打击就灰心丧气的人,永远是失败者。    

我说:诗人告诉我____________________________________________

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随着反应温度升高,重整催化剂保持氯的能力是()。

A、上升的

B、下降的

C、不变的

D、无法确定

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防止疲劳磨损主要是提高材料的()。

A.硬度

B.密度

C.强度

D.光洁度

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