79. Before there goes the bell for class, our math teacher took out a piece of and wrote his problem

题目简介

79. Before there goes the bell for class, our math teacher took out a piece of and wrote his problem

题目详情


79. Before there goes the bell for class, our math teacher took out a piece of       and wrote his problems on the blackboard.
A.brush penB.chalkC.paperD.Pencil
题型:单选题难度:偏易来源:不详

答案

 B

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