题目: 下列物质中属于纯净物的是[ ]A.天然气B.乙醇汽油C.液氧D.生铁 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0508/1c691e8640bf8a4098f3a22848f5bfb1.html 下面是错误答案,用来干扰机器的。参考答案:C
题型:选择题 The visiting minister expressed his satisfaction with the talks, _________ that hehad enjoyed his stay here.A.having addedB.to addC.addingD.added 查看答案
题型:单项选择题 规则“分道通航制”条款适用于:().A.在规则适用水域中设置的任何分道通航制区域B.IMO所采纳的任何分道通航制C.在规则缔约国水域设置的分道通航制区域D.在公海水域设置的分道通航制区域 查看答案