问题 单项选择题

受菌直接摄取供菌游离DNA片段获得新性状的过程为()。

A.接合

B.转导

C.转化

D.溶源性转换

E.原生质体融合

答案

参考答案:C

改错题

第二卷(共35分)

第四部分:写作(共两节,满分35分)

第一节 短文改错(共10小题;每小题1分,满分10分)

此题要求改正所给短文中的错误.对标题号的每一行做出判断:如无错误,在该行右边的横线上划(√);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。

There is public library in every town in Britain.     76._______      

There are branch library in many villages.             77._______     

Anyone may borrow books, and it cost nothing to              78._______      

borrow them. In some places you may borrow many   79._______      

books as you want; in other places where you             80._______     

are limited to a certain number, of that some                 81._______    

may be novels. Books may be keep for four weeks.     82._______     

Newly – published novels are always in great demand 83._______     

and some books, for example, books for history,         84._______     

science, cooking but gardening are also popular.         85._______     

单项选择题