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

游客2025-07-03 1

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

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答案 E

解析根据句意“教师用它在黑板上写字”，可知是粉笔(chalk)。

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Itisaseasonwhenleavesfall.[br]Itisthetimewithoutsunandforpeople