问题 选择题

下图为某同学在观察洋葱鳞片叶表皮细胞临时装片过程中,显微镜下看到的两个不同个视野,要使图像从视野①模糊→视野②清晰的状态,下列操作正确的是

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A.调节细准焦螺旋

B.调节粗准焦螺旋

C.改用高倍数的物镜

D.改用低倍数的物镜

答案

答案:A

阅读理解

阅读下面的材料,然后根据材料内容回答所提问题。

       Paris is the capital of France. Its subway (地铁) is also very special. You can enjoy its culture when you

are in this city. First you can see many people reading books in the subway. Whenever they are in the subway

or at the station, there is always a book in the hand.

       The subway station in Paris is not big, but each of them has its special acts. Some stations look like ships.

Some stations have clothes, caps and shoes. And every station has a big advertisement picture. But many of

them are for selling clothes and cosmetics (化妆品).

       You can meet some beggars (乞丐) in the subway. But the beggars in the Pairs subway are also very

special. They often play the violin or guitar in the train. They don't feel shy at all. Instead they think it is natural.

After playing, they will go around the train and ask you to give them some money.

       If you want to learn more about Paris, go to the subway and enjoy its culture by yourself.

1. Which city is the capital of France?

                                                                                        

2. What do people usually do when they are in the subway? 

                                                                                        

3. Is the subway station very big in Paris?

                                                                                        

4. What can you buy in some subway stations?

                                                                                        

5. How do the beggars get money from people in the subway?

                                                                                        

选择题