D类检修是下列哪些方面？（）
A.维护性检修和巡检
B.带电测试
C.在不停电状态下对设备进行的外观检查、维护、保养
D.例行试验
参考答案：A, B, C
酸雨的危害不包括
A．使土壤酸化B．使植物叶绿素增多C．使鱼贝类死亡D．增加农作物中的有害物质含量E．腐蚀建筑物
句型转换。
1. That is Mrs. Green. (画线提问)
__________ __________ that?
2. He is eleven. (画线提问)
__________ __________ is he?
3. Would you like some fish? (否定回答)
__________ __________.
4. The children are playing. (画线提问)
__________ are the children __________?
5. The man is on the train. (画线提问)
__________ __________ the man?
