问题 单项选择题 A型题

关于肝细胞腺瘤,说法错误的是()。

A.较少合并肝硬化

B.多数为单发,有包膜

C.对其周围肝组织及血管无挤压及浸润征象

D.圆球状或类圆球状

E.肿块内可见不规则液化坏死区

答案

参考答案:C

解析:肝细胞腺瘤较小时多呈均匀的弱回声,增大后呈等回声或稍强回声。彩超可见肿瘤周边有动、静脉血流,内部血供不丰富,所以肿块较大时内部可见不规则液化坏死区。肿块较大时对其旁肝组织及脉管组织仅有挤压而无浸润及癌栓形成。

选择题
阅读理解

B

Babies love chocolate, and sometimes they also eat the paper around it. My cat enjoys a meal of good, thick paper, old letters, for example . She doesn't like newspapers very much .

Of course, the best paper comes from wood. Wood comes from trees , and trees are plants: Vegetables and fruit are plants too, and we eat a lot of them . So can we also eat wood and paper?

Scientists say: “ All food comes in some way from plants. ” Well, is that true? Animals eat grass and grow fat. Then we eat their meat. Little fish eat sea-plants; then bigger fish swim along and eat them . Chickens eat bits of grass and give us eggs . What food does not come from plants in some way?

Scientists can do wonderful things with plants . They can make food just like meat. And they can make it without the help of animals . It is very good food, too . Now they have begun to say : “ We make our paper from wood . We can also make food from wood . The next thing is not very difficult . ”

What is the next thing? Perhaps it is food from paper. Scientists say;“We can turn paper into food . It will be good , cheap food too : cheaper than meat or fish or eggs . ”

So please keep your old books and letters . One day , soon , they will be on your plate. There is nothing like a good story for breakfast .

6.People live mainly on ______.                   

A.paper          B.plants        C.fish           D.meat

7.Scientists have ______.                    

A.made a lot of paper   B.fed eggs to chickens

C.made food just like meat D.made meat cheaper than food from paper

8.Chickens eat bits of grass . In the sentence “bits of” means _________________________.   

A.a little of    B .lots of  C.big pieces of    D .small pieces of

9.Which of the following is NOT true?           

A.Scientists say, “All food comes in some way from plants . ”

B.Scientists can make wood into food some day.

C.Scientists can make food from paper some day.

D.Scientists advise us to eat old books and letters at meals .

10.Choose one of the following as the topic for the passage .   

A.Paper----Our Future Food   B.No More Meat in Future

C.Save Old Books for Breakfast  D.Paper----The Best Cat Food