下列牌号中为奥氏体不锈钢()A.1Cr13 B.0Cr13 C.1Cr18Ni9Ti 发布时间:2017-04-17 11:02 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下列牌号中为奥氏体不锈钢()A.1Cr13B.0Cr13C.1Cr18Ni9TiD.4Cr13
题型:单项选择题 — What is your favourite sport? — Swimming, I think. It's _____ of all. [ ]A. easier B. more difficult C. the most interesting D. the most boring 查看答案