题干

Last year the number of students who graduated with a driving license reached 200,000,a(n)______of 40,000 per year.
A.averageB.number
C.amountD.quantity
上一题 下一题 0.85难度 单项选择 更新时间:2017-10-27 01:01:39

答案(点此获取答案解析)