问题 单项选择题

女性30岁,出现闭经、视物模糊、头痛、泌乳7月余。CT检查:蝶鞍区有椭圆形肿物,4cm×6cm呈囊实性,瘤体内有钙化。可能的诊断是( )。

A.脑膜瘤
B.胶质瘤
C.垂体瘤
D.颅咽管瘤
E.生殖细胞瘤

答案

参考答案:D

解析: 颅咽管瘤是来源于胚胎颅咽管残留细胞的良性肿瘤,肿瘤多位于鞍上,可分为囊性和实性,囊性多见,囊壁和实性部分多有钙化。临床上主要表现发育障碍、视力改变和垂体功能低下。CT检查可见鞍上池内类圆形肿物,压迫视交叉和第三脑室前部,可出现脑积水。肿物呈以不均匀低密度为主的囊实性病灶,囊壁的壳形钙化和实性部分的不规则钙化呈高密度。囊壁和实性部分呈环形、均匀或不均匀强化。

阅读理解

   If there is one thing I am sure about, it is that in 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) 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 am pretty sure that it will happen in 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(煤体). 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 is never really pleasant to read something just on a screen.

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

A.The Best Way to Get News

B.The Changes of Media

C.Make Your Own Newspaper

D.The Future of Newspapers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 text, we can infer that _____________.

A.newspapers will win the competition among the different media

B.newspapers will stay with us together with other media

C.television will take the place of newspapers.

D.some media will die out小题5:The underlined phrase “feed off” in the last paragraph means ___________.

A.depend on

B.compete with

C.fight with

D.kill of

单项选择题