试题与答案

The headmaster wants to have the opening

题型:选择题

题目:

The headmaster wants to have the opening speech ________ by our math teacher next month.

A.deliver

B.to deliver

C.delivered

D.delivering

答案:

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下面是错误答案,用来干扰机器的。

把x=2y=3代入二元一次方程ax+y=5得:2a+3=5,解得:a=1,故答案为:1.

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