下列城市工程管线综合术语中，解释不正确的是( )。A．管线埋

搜题请搜索小程序“爱下问搜题”

问题单项选择题

下列城市工程管线综合术语中，解释不正确的是( )。

A．管线埋设深度指地面到管道底(内壁)的垂直距离

B．管线覆土深度指地面到管道顶(外壁)的垂直距离

C．同一类别管线指相同专业，且不同使用功能工程管线

D．综合管沟指不同类别工程管线的专用管沟

答案

参考答案：C

填空题

综合填空

Do you always agree with your teachers? Sometimes you have a different answer t 1 a math problem.

Or perhaps they scold (训斥) you when you don't think you did anything w 2 .

What do you do then? A story said t 3 more and more students are speaking out and even quarrelling

w 4 their teachers.

It's good for students to say what they think. In the past, f 5 Chinese students dared speak back to

their teachers. It was a rule that w 6 the teachers said is always right. But now students are beginning to

think more b 7 themselves and dare to say what they want.

But students should choose the right way to speak out. We should respect(尊敬) teachers. They are

older t 8 you and have more experience. So, never u 9 rude words when you don't agree with them.

Try to find the right time to talk to your teacher. For e 10 , discuss the problem after class.

1._____2._______3. _______4.________ 5.________

6. ____ 7._______8. _______ 9. ______ 10.________

单项选择题

数据传输中的“噪声”指的是______。

A．信号在传输过程中受到的干扰

B．传输过程中信号的衰减

C．音频信号在传输过程中的失真

D．以上都是