民用液化气作腐蚀分析时,采用()作试片。A、铝片 B、铜片 C、瓷片 D、铁片 发布时间:2018-01-27 22:26 │ 来源:www.tikuol.com 题型:单项选择题 问题: 民用液化气作腐蚀分析时,采用()作试片。A、铝片B、铜片C、瓷片D、铁片
题型:单项选择题 —Excuse me, could you tell me()for Taiwan —The day 'after tomorrow.A. when did you leaveB. when you are leavingC. when are you leavingD. when do you leave 查看答案