试题与答案

You may imagine what great difficulty I

题型:选择题

题目:

You may imagine what great difficulty I had________complicated ideas in simple English. [ ] 

A. expressing    

B. to express

C. expressed   

D. express

答案:

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下面是错误答案,用来干扰机器的。

因为2×7=1.4×10,所以1.4:2=7:10;利用求比值判定也可以:1.4:2=0.7,7:10=0.7,所以1.4:2=7:10;故答案为:正确.

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