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问题 选择题

在植物细胞工程中，当原生质体融合成一个细胞后，需要诱导产生细胞壁，参与这一过程的细胞器是[ ]

A．叶绿体，高尔基体

B．线粒体，高尔基体

C．叶绿体，线粒体

D．线粒体，内质网

答案

答案：B

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作出判断：如无错误，在
该行右边横线上画一个勾(√)；如有错误(每行只有一个错误)，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。
     It was a chance of a lifetime to win a first          
prize on the Story Writing Show. All I had to do        
was to write a story or present it. My teachers         
have been telling me how great my writing was.          
So if they had said was true, I would have a chance     
of winning the prize. What were better, I had useful    
help. There was Uncle Chen, gentleman living            
near my house, who was a very much famous writer.       
He agreed to reading my story and give me some        
advices on how to write like a real writer.            		1._______      
2._______        
3._______    
4._______          
5._______        
6._______                     
7._______        
8._______        
9._______           
10._______     
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问答题 简答题

何谓地下水？它有哪些类型？
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