简述排涝设计流量及其计算方法。

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问题:

简述排涝设计流量及其计算方法。

考点:灌排工程工灌排工程工题库
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任务型阅读。仔细阅读下面的短文并按要求完成后面的小题。

     It is said that about half of the people in China smoke. Many young boys and girls have the habit of

smoking, though they are middle school students.

     More and more people have come to realize how serious this problem is. But they are never bored

with it. (1) Some people think it is a kind of fashion, some think it is of great fun and others think that

smoking can refresh themselves.

     Smoking causes many illnesses. A lot of people always cough (2) ______ ______ smoking. The most

serious illness caused by smoking is lung cancer. At the same time smoking is a waste of money. Besides,

careless smokers may cause dangerous fire. 

     (3) 众所周知,吸烟有害于人体健康。In order to keep healthy, we should get rid of the bad habit

of smoking. Please stop smoking at once.

1. 将(1)句划线部分译成汉语:___________________________________________________________

2. 在(2)句的空白处填入适当的词使句意完整、上下文通顺:______ ______ 

3. 将(3)句划线部分的汉语译成英语:_____________________________________________________

4. 列出短文中提到的吸烟的至少两点危害:________________________________________________

5. 该篇短文的主题是:__________________________________________________________________

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基层单位的安全目标包括以下哪些内容。()

A.不发生人身重伤、死亡事故

B.不发生五级及以上电网、设备事件

C.不发生六级信息系统事件

D.满足百日安全个数或安全天数

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如图为核电站发电流程图.下列说法正确的是

[ ]

A.远距离输电要用低压输电

B.汽轮机将机械能转化为内能

C.核能是不可再生能源

D.利用核能发电是安全无污染的

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人口城镇化

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什么是汽轮机组自动启停程序控制系统?

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