拔牙术后并发症包括___________和___________。

某修路队抢修一段公路，原计划36天可以完成任务，为了赶工程进度，开工时又调来一个修路队，结果实际每天比计划多抢修200米，只用了20天就完成了任务。这段公路长多少米（）

A．9000

B．7000

C．5000

D．4000

阅读理解.

     The way people hold to the belief that a fun-filled, painfree life equals happiness actually

reduces their chances of ever attaining real happiness. If fun and pleasure are equal to

happiness then pain must be equal to unhappiness. But in fact, the opposite is true: more

often than not things that lead to happiness involve some pain.

     As a result, many people avoid the very attempts that are the source of true happiness.

They fear the pain inevitably brought by such things as marriage, raising children, professional

achievement, religious commitment, self-improvement.

     Ask a bachelor why he resists marriage even though he finds dating to be less and less

satisfying. lf he is honest he will tell you that he is afraid of making a commitment. For

commitment is in fact quite painful. The single life is filled with fun, adventure, excitement.

Marriage has such moments, but they are not its most distinguishing features.

     Couples with infant children are lucky to get a whole night's s1eep or three-day vacation.

I don't know any parent who would choose the word fun to describe raising children.But

couples who decide not to have children ever know the joys of watching a child grow up

or of playing with a grandchild.

     Understanding and accepting that true happiness has nothing to do with fun is one of the

most liberating realizations. It liberates time: now we can devote more hours to activities that

can genuinely increase our happiness. It liberates money: buying that new car or those fancy

 clothes that will do nothing to increase our happiness now seems point1ess. And it liberates

us from envy: we now understand that all those who are always having so much fun actually

may not be happy at all.

1. According to the author, a bachelor resists marriage chiefly because.

A. he is reluctant to take on family responsibilities

B. he believes that life will be more cheerful if he remains single

C. he finds more fun in dating than in marriage

D. he fears it will put an end to all his fun adventure and excitement

2. Raising children, in the author's opinion, is.

A. a moral duty

B. a thankless job

C. a rewarding task

D. a source of inevitable pain

3. From the last paragraph, we learn that envy sometimes stems form -.

A. hatred

B. misunderstanding

C. prejudice

D. ignorance

4. To understand what true happiness in, one must______.

A. have as much fun as possible during one's 1ifetime.

B. make every effort to liberate oneself from pain

C. put up with pain under all circumstances

D. be able to distinguish happiness from fun

5. What is the author trying to tell us?

A. Happiness often goes hand in hand with pain.

B. One must know how to attain happiness.

C. It is important to make commitments.

D. It is pain that leads to happiness.

冰机入口带氨的主要原因是（）。

中央电视台开播的《星光大道》、《我要上春晚》通过其强大的媒体优势及节目的创新赢得了广大观众的喜爱，成就了许多人的明星梦，也成为商家必争的优质电视广告宣传载体。这说明（）

①大众传媒在文化传播中发挥着重要作用

②文化与经济相互交融

③创新是文化富有生机与活力的重要保证

④经济发展是文化发展的基础

A.①②③

B.①②④

C.①③④

D.②③④

不属于糖尿病性植物神经病变者是（）

A.体位性低血压

B.腹泻、便秘

C.尿潴留

D.肢体麻木，感觉过敏

E.多汗