下列选项中，不属于城市桥梁工程的是( )。A．拱桥建设工程B．

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问题单项选择题

下列选项中，不属于城市桥梁工程的是( )。

A．拱桥建设工程
B．跨线桥建设与维修工程
C．人行天桥建设、养护与维修工程
D．地下人行通道的建设、养护与维修工程

答案

参考答案：A

阅读理解

阅读理解。

This is a photo of Mr Black's family. The man with glasses (眼镜) is Mr Black,the father. The woman is

the mother. They have a son and a daughter. The son is behind Mr Black. His name is Jack. He's 14. Kate

is Jack's sister. She is 12. Jack and Kate are in the same school, but they are in different (不同的 ) grades.

Jack is in Grade Three and Kate's in Grade One. They are good students.

1. Mr and Mrs Black have _____ .

A. a son and a daughter

B. Jack and Kate's sister

C. three children

D. a family of five

2. The woman is _____ mother.

A. Kate

B. Jack

C. Kate's and Jack's

D. Kate and Jack's

3. Jack and Kate are in the same _____ .

A. class

B. grade

C. school

D. year

4. Black is the _____ name.

A. man's

B. woman's

C. boy's

D. family

5. Jack and Kate are _____.

A. not good children

B. good students

C. in different schools

D. in China

单项选择题

使用普通5类双绞线，RJ45插头的10BASET网络中，一个网段最大长度是：（）

A、80米

B、100米

C、185米

D、500米