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【单选题】
As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through life, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body. Stress is 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 'flight and fight' and in more primitive days the choices made the difference between life and 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 diseases 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. 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 traveling fast all the time
D.
they are becoming busier with their work
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举一反三
【单选题】下列项目中不应计入产品成本的费用是( )。
A.
生产工人工资
B.
车间设备折旧费
C.
废品损失
D.
厂部管理人员工资
【简答题】当今社会,节能减排成为发展的需要,在生物工业下游加工过程中,如何能有效地获得产品并减少污染物的排放甚至零排放,成为一个严峻的课题。相对于传统的分离方法,膜分离技术无疑是一个更好的选择。但在 膜分离过程中 ,也 会 出现 膜污染 现象 , 什么是 膜污染 ? 在使用过程中,如何降低膜污染 ?
【单选题】二甲基乙酰胺的闪点是70℃,它的火灾危险等级是
A.
丁类
B.
丙类
C.
乙类
D.
甲类
【简答题】简述PN结的基本特性。
【单选题】水平防潮层的常见做法不包括( )。
A.
asphalt felt
B.
lime mortar
C.
cement mortar
D.
fine stone concrete
【单选题】“亦余心之所善兮,虽九死其犹未悔”。总理引用屈原《离骚》中的这句话以此明志,做好今后三年的工作。这给我们的哲学启示是()。
A.
实现人生价值应当善于利用客观条件
B.
实现人生价值需要发扬艰苦奋斗的精神
C.
树立崇高理想就能实现人生价值
D.
坚定的理想信念能激励我们实现人生价值
【单选题】Photoshop软件中的颜色模式包括:
A.
RGB
B.
CMYK
C.
索引模式
D.
以上皆是
【简答题】列举三种常见灭火器种类
【判断题】.废品损失不应计入产品成本。
A.
正确
B.
错误
【判断题】废品损失不应计入产品成本。 ( )
A.
正确
B.
错误
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