工程车救援电客车时,两者只能实现()连接,所以需隔离电客车停放制动。 A.气路 B. 发布时间:2018-08-17 14:32 │ 来源:www.tikuol.com 题型:单项选择题 问题: 工程车救援电客车时,两者只能实现()连接,所以需隔离电客车停放制动。A.气路B.电路C.机械D.通讯
题型:单项选择题 用所给词的适当形式填空. 1. The people here are very ________ (friend) to us. 2. This coat is too small, please ________ (give) a large one to me. 3. Jim ________ (not has) to get up early tomorrow morning. 4. ________ he ________ (write) a letter now? 5. ________ (not open) the door, please . 查看答案
题型:单项选择题 在地面作用矩形均布荷载p=400kPa,承载面积为4m×4m。试求承载面积中心O点下4m深处的附加应力与角点C下8m深处的附加应力比值,最接近下列何值 (矩形均布荷载中心点下竖向附加应力系数αo可由下表查得)() A.1/2B.1C.2D.4 查看答案