钢筋闪光对焊接头外观检查结果中,接头处的轴线偏移不得大于钢筋直径的0.1倍,且不得( 发布时间:2017-06-22 11:29 │ 来源:www.tikuol.com 题型:单项选择题 问题: 钢筋闪光对焊接头外观检查结果中,接头处的轴线偏移不得大于钢筋直径的0.1倍,且不得( )。A.大于2mmB.小于2mmC.大于4mmD.小于4mm
题型:单项选择题 Many years of hard work_______ his great success in the development of this new type of material.A.due toB.thanks toC.contributed toD.looked into 查看答案