转K4型转向架闸瓦磨耗剩余厚度不小于()。 A.10mm B.14mm C.15mm 发布时间:2018-09-27 16:23 │ 来源:www.tikuol.com 题型:单项选择题 问题: 转K4型转向架闸瓦磨耗剩余厚度不小于()。A.10mmB.14mmC.15mmD.20mm
题型:单项选择题 I don't know _______ the day after tomorrow. [ ]A. what he will do B. what will he do C. what he did D. what did he do 查看答案