有一个圆形花坛，周长是18.84米，绕它的周围修了一条1米宽的环形

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问题解答题

有一个圆形花坛，周长是18.84米，绕它的周围修了一条1米宽的环形小路，这条环形小路的面积是多少平方米？

答案

18.84÷3.14÷2=3（米），3.14×[（3+1）²-3²]=21.98（平方米）

阅读理解

阅读选择正确答案。

Bill, Jack and I are in the same class at Chongqing No.2 High School. We are good friends, but we are

from different countries (国家). Bill is from England. He likes Chinese noodles very much. Jack's favorite

food is hamburgers. They look like twin (双胞胎) brothers, but they are not. Jack is from Canada. I come

from China. I like Chongqing food very much. They like singing very much and I like playing soccer

a lot.

1. We are in _______ now.

A. Beijing

B. Chongqing

C. America

2. We are from _______ countries.

A. same

B. different

C. all

3. Jack like _______ very much.

A. Chinese noodles

B. eggs

C. hamburgers

4. Jack is Bill's _______.

A. friend

B. brother

C. teacher

5. My favorite sport is _______.

A. driving

B. singing

C. soccer

单项选择题

SS4型电力机车上ZDl05型牵引电动机刷盒与换向器保持平行，与换向器表面距离为（）。

A、1～3mm

B、1~4mm

C、2～3mm

D、2～4mm