当轿门和层门中任一扇门未关好和门锁未啮合( )以上时,电梯不能启动。A.4mm B 发布时间:2017-06-09 01:01 │ 来源:www.tikuol.com 题型:单项选择题 问题: 当轿门和层门中任一扇门未关好和门锁未啮合( )以上时,电梯不能启动。A.4mmB.5mmC.6mmD.7mm
题型:单项选择题 用所给词的适当形式填空1. Is your father a factory _____ (work)? 2. _____(Tony) book is on the desk. 3. These _____(be) my students. 4. I’m from China and I’m _____(China). 5. My _____ (parent) are teachers. 查看答案