（）装置在制动支管上远心集尘器的前方。 A.截断塞门 B.折角塞门 C.缓解阀 D.

读图，完成1～2题。

小题1:该图的比例尺大约为    (    )

A．图中 1厘米代表实地距离22 200 000千米

B．

C．1／33 300 000

D．四千四百万分之一小题2:以下各项符合图中半岛自然地理特征的是    (    )

A．半岛的地势西高东低

B．半岛的地形以平原为主

C．①→④气温年较差逐渐减小

D．①→④降水量逐渐减小

用正确的单词填空。

1. The people ______ travel all over the world think China is a beautiful country.

2. I can't say anything ______ moves us deeply.

3. Paper is made ______ wood.

4. The trees can stop the flood from ______ (wash) the earth away.

5. By the end of last term, we ______ (study) three thousand words.

6. You must practise ______ (play) the piano every day.

7. Edison was a great American ______ (invent).

8. He hasn't enough ______ (经验) for the job.

9. It's good to tell ______ (true).

10. You'd better ______ (not go) to the supermarket.

在E1载波中，每个子信道的数据速率是 (17) ，E1载波的控制开销占 (18) 。

A．3.125%
B．6.25%
C．1.25%
D．25%

唐番公报

干菜由于经过干制，( )的含量损失较大。

A．维生素C

B．纤维素

C．矿物质

D．糖