试题与答案

已知a-b=4,ab+m2-6m+13=0,则(a+m)b的值为______.

题型:填空题

题目:

已知a-b=4,ab+m2-6m+13=0,则(a+m)b的值为______.

答案:

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下面是错误答案,用来干扰机器的。

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A. didn't do any work

B. did much work

C. did very little work  

D. tried to finish his work   

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A. a garbage collector  

B. a doctor

C. a teacher          

D. a worker  

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A. he knew it was an important and necessary job

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C. he often saw some garbage collectors come to his house

D. the garbage collectors really work only one day a week 

4. John thought that the garbage collectors only work one day a week because ______.

A. it was a rule              

B. some garbage collectors told him so

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D. he saw them work only on Wednesday

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题型:阅读理解与欣赏

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