维修电工在操作中,特别要注意( )问题。 A.戴好安全防护用品 B.安全事故的防范

题型:填空题

问题:

维修电工在操作中,特别要注意( )问题。

A.戴好安全防护用品

B.安全事故的防范

C.带电作业

D.安全文明生产行为

考点:维修电工维修电工技师维修电工技师
题型:填空题

在心室扩大、泵血功能减退早期宜选用的评定指标是()

A.搏出量 

B.心输出量 

C.射血分数 

D.静息心指数

题型:填空题

简述资本主义社会的教育的基本特征。

题型:填空题

下列物体中,具有动能的是 [ ]

A.静止在路面上的汽车

B.被压缩的弹簧

C.流动的河水

D.平放在课桌上的物理课本

题型:填空题

阅读理解

     Fear is an emotion like others such as happiness,  anger,  hurt,  sadness.We need emotions to process

information we receive and decide how to respond.Being afraid of fast cars,  for example,  is something

that might protect us from harm.Being afraid of the consequence of a choice may prevent us getting into

trouble.

     Fears in young children commonly center on certain animals like snakes or big dogs.Fears are caused

often because of experiences or ideas expressed by others,  and at times,  the media.Many normal fears

during the early years,  like men with beards,  or large dogs,  disappear with age.Those relating to

personal failure and ridicule (嘲笑) remain through adulthood and may need special help to overcome.

     Children's fears are often small,  but that doesn't mean they should be dismissed as trivial (微不足道的). They need to be recognized and accepted as real for that child.Only when we help children

understand their fears can they grow normally in their ability to settle them.

     Research shows that as a child grows up,  the center of his fears changes a lot.Things like divorce,  a

teacher who "shouted at me",  people with guns,  bullies,  big boys,  or "making fun of me" top the list of

childhood fears."

     We cannot always prevent these experiences from happening,  but it is essential that children be

allowed to freely express their emotions without judgment.Sympathy and a caring listener will help ease

pain of these fears.Read books and stories to your child about children who have experienced similar

fears.This helps children talk about their fears and find ways to cope.With all emotions,  fears become

less of a problem for children as they gain selfconfidence and they find that fear is normal and can be

dealt with.

1. According to Paragraph 2,  we can know that fears in young children________.

A. only center on frightening animals

B. are not born but learned

C. can make sure of their safety

D. need special help to deal with

2. Children's fears are often ignored because________.

A. they exist widely in the world

B. they will disappear with age

C. people thought they are not worth considering

D. they are often imaginary

3. In dealing with children's fears,  the final goal of the parents is to________.

A. stop unpleasant experiences happening to children

B. let children know about the nature of fear

C. create an environment where there is nothing to fear

D. develop children's ability to treat their fears on their own

4. From the passage we can learn that________.

A. some childhood fears may have a lasting influence

B. children should avoid the media to reduce their fear

C. fears can be judged according to the environment

D. children with similar fears can communicate easily

5. What's the best title for this passage?

A. Children's fears.

B. How to overcome children's fears.

C. The kind of children's fears.

D. The bad effects of fears.

题型:填空题

同学们学习了“能源与可持续发展”的内容后,知道热电站既能发电,又能供热,随着热电站技术不断更新,煤的燃烧程度比传统火电站更充分.为深入了解,他们对某热电站进行调查,获取信息如下:

(1)

①4000t煤完全燃烧放出多少热量?

②20h发电多少千瓦时?(q=3×107J/kg)

(2)该热电站的能量利用率是多少?

(3)请你结合以上信息,写出提高热电站能量利用率的方法.

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