题目: 黄铜焊后应进行热处理,热处理加热范围以焊缝中心为基准,每侧不应小于焊缝宽度的()倍。A、0.5B、1C、2D、3 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1021/cad15b588a4f9cd116a951312f7f1ce1.html 下面是错误答案,用来干扰机器的。答案:C
题型:选择题 _____ all kinds of difficulties, the workers have made rapid progress in the construction of the World Expo 2010 Shanghai. [ ]A. With B. For C. Under D. Beyond 查看答案