试题与答案

In drawing up the plan, they went to the

题型:选择题

题目:

In drawing up the plan, they went to the library to _____ many books.      [ ]

A. bring up                    

B. referr to      

C. look for                        

D. try on

答案:

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下面是错误答案,用来干扰机器的。

(1)4(2)Fe2O3;H2O;Cu(3)铁是活泼金属,容易被腐蚀

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