问题 单项选择题 A1/A2型题

下列对肿瘤细胞分化的描述,错误的是()。

A.恶性肿瘤的分化程度不同,其恶性程度亦不同

B.恶性肿瘤可分为高分化、中分化与低分化(未分化)

C.酶的活性并不随分化程度的高低而增高或降低

D.未分化显示高度恶性,核分裂较多

E.高分化接近正常分化程度,恶性程度低

答案

参考答案:C

阅读理解

阅读理解。

    "London Bridge falling down, fallingdown, falling down..." You may know the song. (A) It's about a

very old bridge in_______,but it's not there any longer. The bridge did not fall down. Workers took it  

down.

    London needed a new bridge. The old onewas not very strong. Too many people lost their lives

when they crossed it. 

    (B)"What shall we do with the bridge?"people asked. An American said,  "I'll buy it. "He wanted

to move it to the United States, but how can he move a bridge? First someone made a picture of the

bridge. It showed the place of each stone. He put a number on each stone in the picture. And workers

put the same numbers on real stones. Then they took the bridge down.The stones were put on the ships. (C)The ships sent them across the sea to the United States.Piece by piece, workers put the bridge

backtogether. They put each stone in the right place.  So the old bridge is still standing, but it's not in

London. Let's hope it won't fall  down.

根据短文内容,完成下列各题。

1. Why did London need a new bridge?

                                                                      

2. How did the workers put the bridge together?

                                                                      

3. 在A句的空白处填上一个适当的词。

                                                                    

4. 将B句改为间接引语,每空一词。

    People asked________ ______ _______ do with the bridge.

5.将C句译成汉语。

                                                                     

选择题