Will people use money 100 years? [ ] A._爱下问搜题

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问题选择题

Will people use money 100 years? [ ]

A. after

B. on

C. in

答案

答案：C

解答题

列竖式计算
67.9×1.3

判断题

教科书是教师备课和上课的主要依据。