关于截流倍数叙述正确的是______。 A．经溢流井截流入截流干管

搜题请搜索小程序“爱下问搜题”

问题单项选择题

关于截流倍数叙述正确的是______。

A．经溢流井截流入截流干管的雨水流量与上游管段的流量之比
B．经溢流井截流入截流干管的流量与上游管段的旱流流量之比
C．经溢流井截流入截流干管的雨水流量与上游管段的旱流流量之比
D．经溢流井排入水体的流量与上游管段的流量之比

答案

参考答案：C

填空题

单词拼写。

1. Spring has come, and the trees are thick with green ______ (叶子).

2. Taiwan is ______ (分隔) from the mainland by the strait.

3. I consider it ______ (不可能) to believe a single word you say.

4. Not only can walking fish live out of water, but they can also travel short ______ (距离) Over land.

5. We were talking on the phone when, ______ (突然), the line went dead.

6. One of my favourite sayings is"Understand all and ______ (宽恕)all."

7. A man I ______ (认出) as his father sat with a newspaper on his knees.

8. Italy is a ______ (欧洲) country.

9. ______ (赢得) the support of the majority requires time,energy and devotion.

10. Xi'an International ______ (展览) Center has attracted many business people.

单项选择题

（）什么是指信息资源共享体系在运作过程中对其他组织或个人产生附带的成本或收益

A.外部效应

B.信息作为公共物品

C.信息市场的垄断性

D.内部效应