井场施工现场爆炸性气体环境电器的防爆形式分为（）。A、隔爆型

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问题多项选择题

井场施工现场爆炸性气体环境电器的防爆形式分为（）。

A、隔爆型

B、增安型

C、本安型

D、正压型

E、无火花型

F、胶封型

G、充砂型

答案

参考答案：A, B, C, D, E, F, G

听力题

根据题中所给的中文提示或首字母写出符合句意的单词的正确形式。

小题1:The telephone is one of the __________(手段、方法) of communication.

小题2:They has __________(选举) Smith mayor.

小题3:He gave us a __________(率直的、坦诚的) explanation.

小题4:Most smokers are perfectly __________(意识到) of the dangers of smoking.

小题5:Don’t ___________(打断) the speaker;ask your questions afterwards.

小题6:__________(不知怎么地) I don’t like the way he speaks.

小题7:If you need any help, don’t __________(犹豫) to call us.

小题8:It is hoped that the education __________（改革） being carried out now will bring about the desired results.

小题9:The student __________（达到、得到） ‘ A ’ in all his exams through his hard work.

小题10:There is __________(无处) for those who lost their homes in the earthquake to live now.

问答题

试述条约的适用。