电焊作业时,离焊接作业点( )不得有易燃物品。A.5m以内及下方 B.5m以内及上 发布时间:2018-05-27 00:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: 电焊作业时,离焊接作业点( )不得有易燃物品。A.5m以内及下方B.5m以内及上方C.10m以内及下方D.10m以内及上方
题型:单项选择题 There is somebody waiting for you______ I think might be one of your classmates. [ ]A. who B. whom C. whoever D. which 查看答案