汽车制动器的驱动力完全由()产生A、液压 B、气压 C、脚踏板 D、制动蹄 发布时间:2017-07-07 06:09 │ 来源:www.tikuol.com 题型:单项选择题 问题: 汽车制动器的驱动力完全由()产生A、液压B、气压C、脚踏板D、制动蹄
题型:单项选择题 It was announced that only when the fire was under control __________to return to their homes. A.the residents would be permittedB.had the residents been permittedC.would the residents be permitted D.the residents had been permitted 查看答案