“电子能量”的定义,正确的是A.原子处于最低状态时的能量B.电子处于激发状态时的能量

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问题:

“电子能量”的定义,正确的是

A.原子处于最低状态时的能量
B.电子处于激发状态时的能量
C.电子在各个轨道上运动时具有的能量
D.移走某轨道上电子所需的最小能量
E.原子核对轨道电子的最大吸引力

考点:医技考试放射技士相关专业知识初级放射医学技士相关专业知识
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公司产生的经济根源是什么?

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第三部分阅读理解(共两节,满分40分)

阅读理解(共15小题,每小题2分,满分30分)

A

Good health is the most valuable thing a person can have, but one cannot take good health for granted(认为……理所当然). It is important to remember that the body needs proper care in order to be healthy. There are three things that a person can do to help stay in good shape: eat right food ,get enough sleep, and exercise regularly.

Proper nutrition (营养) is important for good health. Your body cannot work well unless it receives the proper kind of “fuel”(燃料).Don't eat too much food with lots of sugar and fat. Eat plenty of foods high in protein ,like meat, fish, eggs and nuts. Vegetables and fruits are very important because they provide necessary vitamins and minerals. However, don't overeat. It is not helpful to be overweight.

Getting the proper amount of sleep is also important. If you don't get enough sleep, you feel tired and easily get angry. You have no energy. Over a long period of time a little a amount of sleep may even result in a change of personality.Be sure to allow yourself from seven to nine hours of sleep each night. If you do, your body will feel strong and refreshed, and your mind will be sharp.

Finally, get plenty of exercise. Exercise firms the body, strengthens the muscles, and prevents you from gaining weight. It also improves your heart and lungs. If you follow a regular exercise program, you will probably increase your life-span (寿命).Any kind of exercise is good. Most sports are excellent for keeping the body in good shapes: basketball, swimming, bicycling, running and so on are good examples. Sports are not only good for your body, but they are enjoyable and interesting, too.

If everybody, were to eat the right foods, get plenty of sleep and exercise regularly, the world would be a happier and healthier place. We would all live to be much older and wiser.

36. According to the passage,_________.

A .we should always keep fit

B. if we were healthy, we could spend our days in doing things with less sleep

C. one can eat a lot to stay in good shape

D. one needn't take any exercise if he is healthy

37.In order to keep good health, ___________ .

A. we should eat a lot of sweets     B. one needs a large amount of fat

C. people should eat according to the foods nutrition  

D. we must try to sleep now and then

38. Eating more and sleeping less________.

A. can keep healthy            B. is no good for you

C. gets you more energy        D. will keep your personality

39.The writer explains ________in this passage.

A. how to eat                   B. the importance of doing exercise

C. how to keep healthy           D. what to eat

40.The title of the article should be___________ .

A. Eating and Exercising         B. How Vitamins Work in Man's Body

C. Staying Healthy              D. Sleeping Well

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投资者在上海证券交易所办理指定交易的登记手续和确认程序为()。

A.投资者向证券公司提出申请,经证券公司同意后,双方签署“指定交易协议书”

B.证券公司按协议向上海证券交易所电脑主机申报证券账户的指定交易指令

C.交易所电脑主机接受申报

D.交易所电脑主机当日收市后发出指定交易确认回报并附确认编号

E.交易所当天收市后即处理到账,同时将处理结果传送给转出证券营业部和转入证券营业部

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()为兰科多年生常绿草本,株高可达30-50cm,假球茎硕大,叶片宽1-2cm,长约20-40cm,花梗自假球茎抽出,每梗着花8-16朵。

A、蝴蝶兰

B、石斛兰

C、大花蕙兰

D、白芨

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工程咨询决策支持系统,辅助工具包括在线分析工具,其中不包括( )。

A.数据挖掘工具

B.专家系统

C.数据仓库

D.文档系统

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