奥氏体不锈钢多层多道焊时,层间温度(即各焊道间温度)应低于( )℃。A.350 B 发布时间:2017-12-22 07:00 │ 来源:www.tikuol.com 题型:单项选择题 问题: 奥氏体不锈钢多层多道焊时,层间温度(即各焊道间温度)应低于( )℃。A.350B.250C.150D.60
题型:单项选择题 We will be losing money this year unless that new economic plan of yours well. [ ]A. is workingB. worksC. will be workingD. worked 查看答案