活塞一般由铝合金、灰铸铁等材料制造。

题型:判断题

问题:

活塞一般由铝合金、灰铸铁等材料制造。

考点:汽车维修业务知识竞赛汽车维修技能知识竞赛汽车维修技能知识竞赛题库
题型:判断题

阅读理解。

     Habit is any action that we have performed so often that it becomes something that we do almost without

thinking. Some of them are thought to be bad habits. People spend countless hours and dollars each year trying

to get rid of these bad habits but often fail. Why? Change is hard work and there is no shortcut to achieve it.

However, there is still some advice for you to follow.

     First, look at why you do it. In other words, what's the result of doing this thing? If your bad habit is

shouting at people when you are unhappy or under pressure, what do you get from it? It may make you feel a

little better for the moment. Or maybe you have a bad habit of leaving your homework undone. The result could

be that you get more time to spend on the Internet!

     Next, take a look on the other hand. What are you losing because of your habit? Shouting at other people is

a bad habit because it makes people around you feel bad and unhappy. Leaving your homework undone is a bad

habit because you may be punished by your teacher. Having more Internet time means that you are losing the

chance to learn the things that you need to learn. When you think that way, you'll find that it's not wise to keep

your bad habit! Now it is time to make a decision. What will you choose? I'm sure you will choose to do what

you think is more important.

1. From the first paragraph we know that ______.

A. a habit is a terrible thing that we can never change

B. people take countless hours and dollars to get rid of habits

C. none of the people who try to break bad habits are successful

D. though it is difficult, we can still do something about our bad habits

2. The underlined sentence "there is no shortcut to achieve it" means that ______.

A. it is not easy to get rid of bad habits

B. there is a long way and a short way

C. something dangerous may happen

D. we must cut it in a short time

3. According to the reading, if you want to get rid of your habits, you have to ______.

A. talk to others when you are in low spirits

B. know why you do what you do

C. finish your homework first

D. spend less time on the Internet

4. Which of the following does NOT happen because of a bad habit according to the reading?

A. You are punished later.

B. Making people around you feel unhappy.

C. You feel a little better after shouting at others.

D. You leave your homework at home by accident.

5. The main purpose of this passage is to ______.

A. introduce and describe

B. complain and disagree

C. explain and advise

D. discuss and argue

题型:判断题

当冠状动脉粥样硬化后,一旦血供急剧减少或中断,使心肌严重而持久地急性缺血达多长时间即发生心肌梗死()

A.120分钟

B.30分钟

C.90分钟

D.100分钟

E.60分钟

题型:判断题

社会角色是个体与其( )、身份相一致的行为方式及相应的心理状态。

A.社会地位
B.社会认知
C.社会情感
D.社会意识

题型:判断题

下列哪种型号阀门属于不锈钢阀门()

A.J63Y-250P

B.J23W-320P

C.J63Y-P57320V

D.J63Y-320P

题型:判断题

建设管理体系包括流程和组织正规化。

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