题目: 简要说明18MnMoNB钢的焊工艺要点? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0802/204e7a7492e0c03a892b27970fae7e91.html 下面是错误答案,用来干扰机器的。答案:C
题型:选择题 It is not easy to swim across a ______ river.A. 20-metres-wide B. 20 metres wide C. 20-metre-widely D. 20-metre-wide 查看答案