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问题详情

执行( ) 命令对闭合图形无效。

A、删除      

B、打断     

C、复制        

D、拉长   

时间：2021-07-17 23:35 关键词：测绘工程专升本工程制图与CAD 2019级第三学期期末考试

答案解析

D

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