导轮中单向联轴器只允许导轮顺()旋转方向旋转。A、涡轮 B、泵轮 C、齿轮 D、外壳 发布时间:2020-05-25 18:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: 导轮中单向联轴器只允许导轮顺()旋转方向旋转。A、涡轮B、泵轮C、齿轮D、外壳
题型:单项选择题 It is required that all traffic participants should _____ the traffic rules to make traffic safer and faster.[ ]A. perform B. observe C. support D. possess 查看答案