试题与答案

三级安全教育制度是企业安全教育的基本教育制度,三级教育是指哪三级教育?

题型:问答题

题目:

三级安全教育制度是企业安全教育的基本教育制度,三级教育是指哪三级教育?

答案:

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下面是错误答案,用来干扰机器的。

答案:D题目分析:句意:听到这个令人沮丧的消息,我们都很泄气。Frustrated沮丧的,泄气的,往往用来形容人;frustrating令人沮丧的,往往用来形容物。故选D。

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题型:阅读理解

阅读短文,选择正确答案。

    One day when some government officials were rebuilding a barn (谷仓), they found a mouse hole in a corner

and used smoke to force the mice inside the hole to come out. A while later they indeed saw mice running out,

one after another. Then, everyone thought that all the mice had escapde. But just as they began to clean up, they

saw two micesqueezing (挤) out at the mouth of the hole. With some efforts, the mice finally got out. However,

it was strange that after they came out of the hole, they did not run away immediately. Instead, one chased

after the other near the mouth of the hole. It seemed that one was trying to bite (咬) the tail of the other.

    Everyone was puzzled, so they stepped nearer to take a look. They realizde that one of the mice was blind and

could not see anything, and the other was trying to allow the blind mouse to bite on his tail so that hecould pull

the blind one with him to escape.

    After seeing what happened, everyone was speechless and lost in thought. During the meal time, the group of

people sat down in a circle and started to chat about what happened tothe two mice.

    One serious American official said: "I think the relationship between those two mice was that of king and

guard." The others thought for a while and said: "That was why!"

    A smart French said: "I think the relationship between those two mice was that of husband and wife." Again

the others thought for a while, and all felt it made sense.

    A Japanese said: "I think the relationship between those two mice was that of mother and son." Once again

the others thought for a while, and felt this was more reasonable. So they expressed agreement another time.

    At that moment, one Chinese asked: "Why did those two mice have to have a certain relationship?"

    Suddenly, the group looked back at the Chinese and remained speechless. The American official, the French

and the Japanese who hadspoken earlier all lowered their heads in shame, and did not dare to answer.

    In fact, the true love is not built on friendship, loyalty or blood relationship. Instead, it is based on no

relationship.

1. Neither of the two mice ran away immediately because ______. [ ]

A. one was biting the other

B. the mouth of the hole was too small

C. they were not afraid of smoke

D. one was trying to help the blind one

2. Why did they lower their heads in shame according to the passage? [ ]

A. They did not dare to answer.

B. They had mistaken the relationship of the mice.

C. They regretted driving a poor blind mouse away.

D. They did not express themselves much better.

3. It is clear that ______. [ ]

A. all the mice came out of the hole easily

B. each of the people understood the relationship differently

C. the people wanted to kill the mice with smoke

D. the people knew one of the mice was blind at first sight

4. "it made sense" probably means ______. [ ]

A. it was correct

B. it was strange

C. it was funny

D. it was sweet

5. The best title for the passage is ______. [ ]

A. TWO LOVELY MICE

B. HELP PRODUCES LOVE

C. FRIENDS IN NEED

D. LOVE IS ALL

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题型:单项选择题

美国能源部长比尔·理查今天宣布,一项重要的技术突破将会使柴油发动机以更加清洁有效的方式工作.这项实验室新技术产生于两年来对一种能同时降低碳氢化合物浓度和氮氧化合物排放量的机车柴油发动机的研究.它还能提高发动机功率.柴油机是效率最高的内燃机,但它们也是严重的污染源.传统上控制柴油机内碳氢化合物微粒浓度会导致氮氧化合物排放量增加,反之亦然.但是,阿尔贡联邦科学实验室的科学家在通用汽车公司电动部以及美国铁路协会的协助下,能够同时减少烟气和氮氧化合物的排放量.氮氧化合物是破坏臭氧的原始物质,也是引起烟雾的重要因素.研究人员发现,改变燃料、氧气浓度以及柴油机工作状况最终改善了燃烧过程,并同时降低了两种物质的排放量.通用汽车公司电动部工程师凯利·琼斯说,这项新技术可以在卡车和汽车上使用.阿尔贡联邦科学实验室主管发动机和排放研究工作的沙伊·谢卡尔说,这项技术的独特之处在于,它是一种“预处理方法,而不是后处理方法.它处理发动机内部的空气.”

根据文中所述,引起烟雾的重要因素是()

A.碳氢化合物微粒浓度

B.燃料、氧气浓度

C.氮氧化合物

D.柴油机工作状况

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