磨损是轧辊最常见的损伤形式，它会危及轧件的（）。 A.表面质量 B.性能 C.塑性

货物重心的投影必须位移时横向位移不得超过（）。超过时，应采取配重施。

导致虚热证的病理变化是

A．阳偏衰

B．阴偏衰

C．阳偏胜

D．阴偏胜

E．阳盛格阴

在一定条件下，将等体积的NO和 NO₂充入试管，并将试管倒立于水槽中，充分反应后剩余气体的体积缩小为原体积的                                （   ）

A．1/2

B．1/3

C．3/8

D．2/3

With the pace of life continuing to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through life, it is hard to slow down. But relaxation is essential for a healthy mind and body.

Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing it is often supposed to be .A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health.

The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make choice between "fight" or "flight" and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme, but however little the stress, it involves the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress. Since we cannot remove stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.

小题1:People are finding less and less time for relaxing themselves because_____.

A．they do not know how to enjoy themselves

B．they do not believe that relaxation is important for health

C．they are travelling fast all the time

D．they are becoming busier with their work小题2:According to the writer, the most important character for a good manager is his ________.

A．not fearing stress

B．knowing the art of relaxation

C．high sense of responsibility

D．having control over performance小题3:Which of the following statements is true?

A．We can find some ways to avoid stress

B．Stress is always harmful to people

C．It is easy to change the habit of keeping oneself busy with work.

D．Different people can withstand different amounts of stress小题4:In Paragraph 3 "such a reaction" refers back to_______.

A．"making a choice between 'flight' or 'fight'"

B．"reaction to stress both chemically and physically"

C．"responding to crises quickly"

D．"losing heart at the signs difficulties"小题5:What does the author think of stress?

A．Stress is a bad thing.

B．Different people can withstand the same amount of stress.

C．A certain amount of stress is not a bad thing.

D．Our health will become endangered if we cannot remove stress.

三轧分厂生产为坯第一架轧机使用的孔型系统为（）。

A、箱形孔型系统

B、菱--方孔型系统

C、箱形与菱--方孔型的混合系统

D、箱--方孔型系统