焊缝边缘上未与基本金属熔合的堆积金属叫( )。A.咬边 B.焊瘤 C.弧焊 D.电弧 发布时间:2017-12-29 21:03 │ 来源:www.tikuol.com 题型:单项选择题 问题: 焊缝边缘上未与基本金属熔合的堆积金属叫( )。A.咬边B.焊瘤C.弧焊D.电弧擦伤
题型:单项选择题 In area it is approximately the same size as the USA (without Alaska),____, however, has____. [ ]A. which, more than fourteen times as many people B. which, fourteen times more than many people C. what, as fourteen times as many people D. where, more than fourteen times as many people 查看答案