问题 单项选择题 A2型题

4岁小孩,生长发育正常,体检时在胸骨左缘下部闻及Ⅱ级柔和的收缩期杂音,无明显传导,心电图和X线胸片检查正常,考虑最大的可能性()

A.室间隔缺损

B.房间隔缺损

C.病毒性心肌炎

D.二尖瓣狭窄

E.以上都不是

答案

参考答案:E

解析:正常小孩有时可在胸骨左缘或心尖部闻及"无害性杂音"。这种杂音来源于血流进入肺动脉或轻度二尖瓣反流和三尖瓣反流所引起的振动,是一种生理现象,不危害小孩健康,多在青春期后消失。其特点包括下列几点:位于胸骨左缘上部肺动脉瓣听诊区或胸骨左缘中下部三尖瓣听诊区,偶尔发生于心尖部;出现于心脏收缩早期和中期;响度Ⅰ~Ⅱ级,偶尔可达Ⅲ级;音调较低,不会掩盖第一心音和第二心音;性质如弹弦样或吹风样;杂音较局限,一般不向周围传导;发热、平卧和运动时较响。

阅读理解

"If there is one thing I'm sure about, it is that m a hundred years from now we will still be reading newspapers. It is not that newspapers are a necessity. Even now some people get  most of their news from television or radio. Many buy a paper only on Saturday or Sunday. But for most people reading a newspaper has become a habit passed down from generation to generation.

The nature of what is news may change .What basically makes news is what affects our lives - the big political stories, the coverage of the wars, earthquakes and other disasters, will continue much the same. I think there will be more coverage of scientific research, though .It's already happening in areas that may directly affect our lives, like genetic(基因的) engineering. In the future, I think  there will be more coverage of scientific explanations of why we feel as we do - as we develop a better understanding of how the brain operates  and what our feelings really are.

It's quite possible that in the next century newspapers will be transmitted(传送)electronically from Fleet Street and printed out in our own home. In fact ,I'm pretty sure  how it will happen m the future. You will probably be able to choose from a menu, making up your own newspaper by picking out the things you want to read - sports and international news, etc.

I think people have got it wrong when they talk about competition between the different media(媒体).They actually feed off each  other.  Some people once foresaw that television would kill off newspapers, but that hasn't happened. What is read on the printed page lasts longer than pictures on a screen or sound lost in the air. And as for the Internet. it's never really pleasant to read something just on a screen.

小题1:What is the best title for the passage?

A.The Best Way to Get News

B.The Changes of Media

C.Make Your Own Newspaper

D.The Future of Newspaper小题2:In the writer's opinion, in the future, _______.

A.more big political affairs, wars and disasters will make news

B.newspapers will not be printed in publishing houses any longer

C.newspapers will cover more scientific research

D.more and more people will watch TV小题3:What will probably be on in the newspaper made by yourself?

A.Sports and international news.

B.A menu of important news.

C.The most Important news.

D.what you are interested in.小题4:From the passage, we can infer ________.

A.newspapers will win the competition among the different meclia

B.newspapers will stay with us together with other media

C.television will take the place of newspaper

D.the writer believe some media will die out小题5:The phrase "feed off" in the last paragraph means ________ .

A.depend on

B.compete with

C.fight with

D.kill off

判断题