调度绞车的日常检查中要注意,检查闸带有无裂纹,磨损不少于()mm。 A.3 B.4 发布时间:2017-09-07 15:55 │ 来源:www.tikuol.com 题型:单项选择题 问题: 调度绞车的日常检查中要注意,检查闸带有无裂纹,磨损不少于()mm。A.3B.4C.5D.6
题型:单项选择题 纠正错误。( ) 1. What do you do in Mondays? A B C D ( ) 2. I often play the ping-pong with Daming. A B C D ( ) 3. What today is it tomorrow? A B C D ( ) 4. I like Mondays and Tuesdays, so I have P. E. A B C D ( ) 5. It is time going to school. A B C D 查看答案