People are all here during workday. [br] Teachers use it to write on the blackbo

游客2025-07-11 9

问题 People are all here during workday. [br] Teachers use it to write on the blackboard.

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答案 F

解析 chalk粉笔

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Thestoryhappenedin______.[br]Wecaninfer(推断)thatA、peopletherehadn’tsee