问题
多项选择题
产生大车启动打滑的原因（）。
A、轨道上有油污
B、安装误差
C、电动机功率过大又未经调速
D、电动机扭矩过大
E、吊物重量轻
答案
参考答案：A, B, C, D
搜题请搜索小程序“爱下问搜题”
产生大车启动打滑的原因（）。
A、轨道上有油污
B、安装误差
C、电动机功率过大又未经调速
D、电动机扭矩过大
E、吊物重量轻
参考答案：A, B, C, D
| 选择合适的句子，将对话补充完整，将字母编号填在横线上。 | |
| Amy: Hello, Mike. This is Amy. Tomorrow is Sunday. Mike: I am going to the Yong Zheng Bookstore. Amy: Good! I want to go, too. Mike: I'm going to buy a Chinese-English Dictionary. Amy: Great! I want to buy a Chinese-English Dictionary, too. Mike: I'm going at 10:00 in the morning. Amy: Mike: I get there by bus. It's two yuan. It's cheap. Amy: Mike: Yes, the bookstore is next to the post office. See you tomorrow. Amy: See you.
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