冲洗绝缘子时,应注意风向,应先冲上风侧,后冲下风侧;对于上、下层布置的绝缘子应先冲下层,后冲上层。还要注意冲洗角度,严防临近绝缘子在溅射的水雾中发生闪络。
参考答案:错
环保治理采用的技术方案,应具有( ),并对生产流程相关环节污染进行全过程控制。
A.先进性
B.科学性
C.实用性
D.可靠性
E.合理性
根据句意,用括号内所给单词的适当形式填空。
小题1:Tom (drop) his schoolbag on the bus. He felt worried.
小题2:My mother is looking forward to (meet) you.
小题3:At first, our foreign English teacher spoke so (quick) that no one could follow her.
小题4:— What’s wrong with Maria?
— She fell off the bike and hurt (her).
小题5:— How clean your house is!
— Thank you. It (clean) every day.