产生温室效应的主要物质是（） A.NO2 B.CO2 C.N2O D.CO E.SO

下列做法中，有利于提高我国人口素质的是

A．优生

B．早育

C．少生

D．晚婚

经济分析是按合理配置资源的原则考察项目的经济合理性。下列关于经济分析作用的说法，错误的是( )。

A．通过经济分析可以明确项目对社会经济的贡献，评价项目的财务合理性

B．根据经济分析结论，政府可对财务效益好、经济效益差的项目进行限制

C．根据经济分析结论，政府可对财务效益差、经济效益好的项目予以鼓励

D．根据经济分析结论，对项目进行调控有助于实现企业利益和全社会利益的有机结合

阅读理解。

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

     1  She described all the things she had to do－one was to make her bed－from the moment she

woke up until she flew out of the door for work. I suggested she experiment by not making her bed

for two weeks. She was shocked, probably thinking I'd been raised by wolves in a forest. 2

    Two weeks later she went into my office beaming. She had left her bed unmade for the first time in

42 years－and nothing bad had happened. "And you know what?"she said. "I don't dry my dishes

anymore, either."

        3 One was discovering that she had choices in her life that she had never seen before. The other

was giving herself permission to be less that perfect. This story shows an important principle (原理)

about managing time: No one can do it all. Each of us has to make choices and accept trade-offs. The

problem is, many people choose in ways that put themselves and their health last. They take better care

of their houses and cars than they do of themselves. 4

    So what is the solution? There's an easy way. Decide what you want in your life, and put that first.

On a daily basis, that should include regular meals, enough sleep and time with your family. Exercise,

leisure, friendships and hobbies should also be regular aspects of life. 5 The choice is yours: whatever

makes you feel good about yourself and your life. Take a nap. Take a walk. Take time to play the piano.

Stop bringing your briefcase home from the office. Stop keeping your house as clean as your mother

kept hers. Fill more of your time with want-to-dos instead of have-to-dos.

A. This woman had made two major breakthroughs (突破).

B. Above all, you needn't do anything for yourself regularly.

C. They put everyone else's needs ahead of their own.

D. However, she went along with my idea.

E.  Most people do not take time to relax themselves.

F. The point is to do something for yourself every day.

G. A patient came to see me about the stress in her life.  

流动的流体内不存在着静压能。

上述各项中属于医生违背不伤害原则的是

A．医生对病人的呼叫或提问给予应答
B．医生的行为使某个病人受益，但却给别的病人带来了损害
C．妊娠危及母亲的生命时，医生给予引产
D．医生给病人实施粗暴性的检查
E．医生尊重病人是指满足病人的一切要求