管道按其输送介质的()可分为汽水介质管道、腐蚀性介质管道和化学危险品介质管道等。A、 发布时间:2019-12-03 22:15 │ 来源:www.tikuol.com 题型:单项选择题 问题: 管道按其输送介质的()可分为汽水介质管道、腐蚀性介质管道和化学危险品介质管道等。A、压力B、温度C、性质D、材质
题型:单项选择题 In 1948, the place where his father had been buried was finally discovered, marked only by _____, on a simple stone.A. a 43-number B. the number 43rdC. the number 43 D. the 43 number 查看答案