问题 问答题 简答题

电力机车防塞过冬整修范围?

答案

参考答案:

(1)控修门窗、砂箱盖。

(2)清扫并检修窗加热器和取暖设备。

(3)检查牵制开关、门联锁风缸,并开盖补油。

(4)中继阀等易冻部件配备防寒罩或加热套。

(5)总风缸排水阀的胶垫更换为金属垫,并包扎防寒。

(6)蓄电池电解液密度调整为1.2~1.22。

(7)压缩机油更换成冬季油,同时清洗空气压缩机油底壳。

(8)机车冬季运行中,应坚持排放总风缸中的凝结水,经常检查干燥器的工作状态,防止因干燥器故障造成总风缸无法充风。

选择题
阅读理解

Can you communicate with others when you live in a foreign country with no or little knowledge of its language? Of course, it is possible. You can communicate your moods and intentions to one another without words, because all human beings share a lot of common visual(看见的)signals. These signals are as effective as words during communication.

The gestures of the head play a key role in body language. The movements of eyes and eyebrows are as important as head movements in body language.

  Besides the gestures of the head or the movements of the eyes and eyebrows, the action of arms, hands and legs is also a large part of body language. Extending one's arm and shaking hands with others is a greeting in both formal and informal cases. This part of body language might date back to primary tribes(部落).

  Like handshaking, there are still many other forms of body language presented by hands. Raising one's hand and making a circle with his thumb(拇指)and for finger signals, that something is OK. Clasped(握紧的)hands raised above the head, a traditional picture accepted by sportsmen after winning a fight, is a display of triumph that grows out of a kind of feeling following a victory. Waving one's hands, a speaker can make his words more powerful and vigorous(有活力的).

  Besides hand gestures, there are times when a person says something with his legs as well as with his head and eyes. The leg gestures often reflect one's attitude towards something or someone that person is with.

  According to the above facts, body language has offered a more reliable(可靠的)way to understand one's mind by means of gestures. Though it is soundless and wordless, once you understand it, you will feel the world is bigger than you realized.

小题1: Which of the following is the proper title for this passage?

A.Body Language

B.How to Communicate with the People around You

C.The History of Body Language

D.Gestures And Languages小题2:After reading the passage we can conclude that ________.

A.hand shaking suggests that the speaker is excited

B.head plays a less important part in body language

C.actors and actresses are good at gestures

D.people began to use body language long long ago小题3:What's the characteristic of body language?

A.Soundless and wordless.

B.Difficult to understand.

C.Powerful and vigorous.   

D.Effective and normal小题4:When sports men win a match, they probably ________.

A.clasp their hands to announce their victory

B.clasp their hands to express their excited feeling

C.have a picture taken as soon as possible

D.show a sign of thankfulness