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问题 多项选择题

非关税壁垒形式多种多样，且较为隐蔽，主要表现包括( )。

A．贸易保护

B．进口禁令

C．进口许可

D．出口限制

E．出口补贴

答案

参考答案：B,C,D,E

填空题

用数学语言表示：x的一半与3的相反数和不小于0，可表示为（      ）。
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改错题
短文改错。
     此题要求改正所给短文中的错误。对标有题号的每一行做出判断：如无错误在该行右边横线
上画一个勾(∨)；如有错误(每一行只有一个错误)，则按下列情况改正：
此行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线(＼)划掉。
此行缺一个词：在缺词处加一个漏字符号(/\)，在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
Dear fellow students,                                                   
     Our school is aimed to build a “harmonious campus” .                  
As a high school students, we should behave ourselves. But           
some students are badly behaved. They threw rubbish about              
and listen MP3 or sleep in class. A few boys even smoke and copy       
other students homework. I think it has a bad effect on their health as 
good as their study. A “harmonious campus” should have civilized      
students. So we should be strict on ourselves. Of course, study is the 
first. But we should study hardly. In order to build a harmonious       
study atmosphere, they must develop good habits. If everyone           
makes a contribution to build our campus, I’m sure                   
our school will become beautiful or harmonious.                                                          
Yours,                                                                   
Li Qiang                           		1_______
2_______
3_______
4_______
5_______
6_______
7_______
8_______
9_______
10_______
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