先天性食管闭锁的分型。

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问题:

先天性食管闭锁的分型。

考点:四川住院医师外科学小儿外科小儿外科题库
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The triathlon(铁人三项运动) promises to be one of the most popular Olympic sports.Recently it has drawn huge crowds attracted by athletes swimming 1,500m,cycling 40km,then running 10km without stopping.But what makes an attractive 17­year­old girl give up everything for the doubtful pleasure it offers?

Melanie Sears has not yet learnt those often­repeated phrases about personal satisfaction,mental challenge and higher targets that most athletes use when asked similar questions.“You swim for 1,500m,then run out of the water and jump on your bike,still wet.Of course,then you freeze.When the 40km cycle ride is over,you have to run 10km,which is a long way when you’re feeling exhausted.But it’s great fun,and all worth it in the end,” she says.

Melanie entered her first triathlon at 14 and she won the junior section.Full of confidence,she entered the National Championships,and although she had the second fastest swim and the fastest run,she came nowhere.“I was following this man and suddenly we came to the sea.We realised then that we had gone wrong.I ended up cycling 20 kilometres too far.I cried all the way through the running.”

But she did not give up and was determined that she never will.“Sometimes I wish I could stop,because then the pain would be over,but I am afraid that if I let myself stop just once,I would be tempted(诱惑) to do it again.”Such doggedness draws admiration from Steve Trew,the sport’s director of coaching.“I’ve just been testing her fitness,” he says, “and she worked so hard on the running machine that it finally threw her off and into a wall.She had given it everything,and she just kept on.”

Melanie was top junior in this year’s European Triathlon Championships,finishing 13th.“I was almost as good as the top three in swimming and running,but much slower in cycling.That’s why I’m working very hard at it.” She is trying to talk her long­suffering parents,who will carry the £1,300 cost of her trip to New Zealand for this year’s world championships,into buying a £2,000 bike,so she can try 25km and 100km races later this year.

But there is another price to pay.“I don’t have a social life,”she says.“After two hours’ hard swimming on Friday night,I just want to go to sleep.But I phone and write to the other girls in the team.” What does she talk about?Boys?Clothes?“No,what sort of times they are achieving.”

小题1:How does Melanie differ from other athletes,according to the writer?

A.She worries less than they do.

B.She expresses herself differently.

C.Her family background is not like theirs.

D.Her aims are different from theirs.小题2:What upset Melanie during the National Championships?

A.She was tricked by another competitor.

B.She felt she had let her team­mates down.

C.She made a mistake during part of the race.

D.She realized she couldn’t cycle as fast as she thought.小题3:What is Melanie trying to persuade her parents to do?

A.Buy an expensive bike for her.

B.Give her half the cost of a bike.

C.Let her compete in longer races.

D.Pay for her to go to New Zealand.小题4:What does Melanie say about her relationships with her team­mates?

A.She would like to see them more often.

B.She only discusses the triathlon with them.

C.She thinks they find her way of life strange.

D.She dislikes discussing boys or clothes with them.

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男患,60岁,近5年来感尿频,排尿时需等半分钟方能排出,尿流细,夜尿增多,排尿不尽,经常有尿溢,近1周出现排尿困难。

要排除患者是否合并尿路感染,应首选哪项检查()

A.B超

B.CT

C.前列腺液常规

D.尿常规

E.尿培养

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至虚有盛候、大实有羸状之语,是对下列哪一项的最好说明()。

A.虚实转化

B.虚实错杂

C.真虚假实

D.真实假虚

E.虚实真假

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主蒸汽“超压”产生的不利情况不包括( )。

A.初压升高过多,会使主蒸汽管道、主汽门、调节阀门、导管及汽缸等承压部件内部应力增大
B.若调节汽门开度不变,压力增大导致蒸汽比体积增大,使主蒸汽质量流量增大
C.由于叶片的压力比与蒸汽流量成正比,压力比增大就是叶片前后压差增大,使叶片受力增大
D.流量增大还会使末级质量焓降增大得最多

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