皮皮学，免费搜题
登录
搜题
【简答题】
当气体导管漏气着火时，首先应将焊割炬的火焰（），并立即（）阀门，切断可燃气体源，用灭火器、湿布、石棉布等扑灭燃烧气体。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】一What do you think of my new dress? --- _______
A.
It is on sale
B.
You really have a new dress
C.
It looks very good on you
D.
I think it's a birthday present for you
【简答题】范宁著有 “王何论”,严厉批评______二人。
【简答题】After watching the micro-class video, please classify these Chinese traditional festivals and western traditional festivals. Chinese traditional festivals: Western traditional festivals:
【简答题】Chinese traditional painting
相关题目：