问题 单项选择题

已知整治水位下原始河道断面平均水深为1.0m,水面宽度为60m,整治水位下航道设计水深为2.0m.假定本河段河道较稳定,且较顺畅。运用理论公式计算得到的整治宽度为()。

A.28m

B.34m

C.40m

D.46m

答案

参考答案:B

阅读理解

     We need your name, year of birth, home address (city and state), phone number, school name

and e-mail address so that we can e-mail you if your work is published (出版).

     The sentence “I promise (承诺) that the work is original (原创的)” must be written on the

top of your writing, and then you must write down your name.

     Keep sending your works all winter! You can mail your works to Chester Press Box 172, Chester,

Cheshire, visit www. Chesterpress.edu or submit (注册) @Chesterpress. edu.

     Please remember the following points:?

     You should keep a copy for yourself.?

     Your work may be corrected. We keep the right (权利) to correct and publish it in any form

without your permission.? 

     If you don’t want your name and address for our record, we will not return your work that you

send to us.

根据短文内容,选择最佳选项。

1. Which of the following is NOT mentioned in this passage?  

A. Phone number.              

B. School name.

C. School address.                  

D. Year of birth.

2. From the passage, we know that Chester Press is probably a ______.  

A. magazine

B. film

C. game

D. club

3. Which of the following is NOT true according to this passage?  

A. You can send your works in winter.

B. Editors at Chester Press cannot correct your works.  

C. You have to make sure that your works are original.

D. You will be told by e-mail if your work is published.

4. What do we know from this passage? 

A. You can send your works by post.

B. You must type the works yourselves.

C. You aren’t allowed to keep your own copy.  

D. Your works cannot be published without your permission.

5. Who might be interested in this passage?  

A. Nurses.                

B. Book sellers.  

C. TV reporters.              

D. Writers.

单项选择题