问题 选择题

Last year the number of students who graduated with a driving licence reached 200,000,a(n) ____________ of 40,000 per year.

A.average

B.number

C.amount

D.quantity

答案

答案:A

句意:去年考过驾照的学生人数达到了20万,平均每年4万。an average of平均是……。

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