运行中车辆进行电控换向,会导致()。A、烧坏保险B、打坏换向箱齿轮C、损坏变速箱齿轮

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问题:

运行中车辆进行电控换向,会导致()。

A、烧坏保险

B、打坏换向箱齿轮

C、损坏变速箱齿轮

D、损坏轮对

考点:钳工技能考试内燃机车钳工考试内燃机车钳工考试题库
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你读过岳飞的《满江红》一词吗?词中写道:“靖康耻,犹未雪。臣子恨,何时灭!…‘靖康耻”这一典故指的是金灭掉北宋,掳走宋徽宗和宋钦宗。此事发生在[ ]

A.960年

B.1127年

C.1142年

D.1276年

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传感器分辨率的主要指标有哪些,各有什么意义?

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德育要赋予每个个体以科学的价值观、道德原则和行为规范,这体现了德育个体功能的生存功能。(  )

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B

A new study suggests that the more teenagers watch television , the more likely they are to develop depression (抑郁)as young adults. But the extent to which TV may or may not be to blame is a question that the study leaves unanswered.

The researchers used a national long-term survey of adolescent health to investigate the relationship between media use and depression . They based their findings on more than four thousand adolescents who were not depressed when the survey began in 1995.

As part of the survey, the young people were asked how many hours of television or videos they watched daily. They were also asked how often they played computer games and listened to the radio.

Media use totaled an average of five and one-half hours a day. More than two hours of that was spent watching TV.

Seven years later, in 2002, more than seven percent of the young people had signs of depression. Their average age at that time was twenty-one.

Brian Primack at the Universtiy of Pittsburgh Medical School was the leading author of the new study . He said every extra hour of television meant an eight percent increase in the chances of developing signs of depression.

The researchers say they did not find any such relationship with the use of other media such as movies, video games or radio. But the study did find that young men were more likely than young women to develop depression given the same amount of media use.

Doctor Primack says the study did not explore if watching TV causes depression . But one possibility, like sports and socializing. It might also interfere with sleep, he says, and that could have an influence.

The study was just published in the Archives of General Psychiatry. In December, the journal Social Indicators Research published a study of activities that help lead to happy lives. Sociologists from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people. The study found that happy people are more likely to be socially active, to read, to attend religious services and to vote.

60.The average age of the depressed young people should be_______when they began to receive the survey.

A.21           B.15              C.14                D.20

61.According to the passage, which of the following can possibly lead to depression?

A.Swimming                           B.Attending a party

C.Attending religious services             D.Watching TV for a long time.

62.We can learn from the passage_______.

A.the survey lasted a short time

B.over 280 teenagers who received the survey became more or less depressed in 2002

C.men are more likely to become depressed than women

D.the study about the relationship between media use and depression was published in the journal Social Indicators Research

63.What is the best title for the passage?

A.Teens, television, depression

B.Depression—the common problem of teens

C.Problems of watching TV

D.Teens—a group enjoying watching TV

题型:单项选择题

工作流程组织所反映的组织系统中各项工作之间的逻辑关系是( )的。

A) 静态
B) 动态
C) 不确定性
D) 可确定性

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