题目内容：
露天作业的起重机冬季要做好防寒防冻。A．正确
B．错误
参考答案：【答案仅供学习，请勿对照自行用药等】
判断题：露天作业的起重机冬季要做好防寒防冻。A．正确B．错误
- 题目分类：起重机操作证考试
- 题目类型：判断题
- 号外号外：注册会员即送体验阅读点！
A．正确
B．错误
A．正确
B．错误
辅助性交际工具
辅助性交际工具
We all like her because she's very helpful.
We all like her because she's very helpful.
We are more convinced than ever that the reform and open-door policy is correct.
We are more convinced than ever that the reform and open-door policy is correct.
We enjoyed ourselves very much at the party.
We enjoyed ourselves very much at the party.
新辞赋体
新辞赋体