问题 单项选择题 A1型题

关于大肠腺瘤的叙述正确的是()

A.直径多大于1cm

B.当伴发上皮内瘤变时有可能恶变

C.恶变率与肿瘤大小无关

D.重度异型增生腺瘤相当于早期癌

E.结节状腺瘤最多见

答案

参考答案:B

解析:大肠腺瘤直径多小于1cm,可以单发,也可以多发;根据腺瘤形态特点分为管状腺瘤、绒毛状腺瘤和管状绒毛状腺瘤。重度异型增生腺瘤相当于原位癌。腺瘤越大恶变率越高,绒毛状腺瘤恶变率最高。腺瘤恶变的病理诊断依据是腺瘤伴发上皮内瘤变、黏膜内瘤变或浸润性腺癌。

阅读理解

阅读理解。

     Many teenagers feel that the most important people in their lives are their friends. They believe that their

family members don't know them as well as their friends do. In large families, it is quite often for brothers

and sisters to fight with each other and then they can only go to their friends for some ideas. 

     It is very important for teenagers to have one good friend or a group of friends. Even when they are not

with their friends, they usually spend a lot of time talking among them on the phone. This communication is

very important in children's growing up, because friends can discuss something. These things are difficult

to say to their family members.

     However, parents often try to choose their children's friends for them. Some parents even stop their

children from meeting their good friends. Have you ever thought of the following questions?

     Who chooses your friends? Do you choose your friends or your friends choose you? Have you got a

good friend your parents don't like? Your answers are welcome.

1. Many teenagers think that _____ can understand them better. [ ]

A. friends

B. brothers

C. sisters

D. parents

2. _____ is very important to teenagers. [ ]

A. To make friends

B. Communication

C. To stop meeting friends

D. Both A and B

3. When teenagers have something difficult to say to their parents, they usually _____. [ ]

A. stay alone at home

B. fight with their parents

C. discuss it with their friends

D. go to their brothers and sisters for help

4. The sentence "Your answers are welcome" means "_____". [ ]

A. You are welcome to discuss the questions with us

B. We've got no idea, so your answers are welcome

C. Your answers are always right

D. Your can give us all the right answers

5. Which of the following is the writer's attitude?[ ]

A. Parents should choose friends for their children.

B. Children should choose everything they like.

C. Parents should understand their children better.

D. Teenagers should only go to their friends for help.

单项选择题 A1型题