FH206-70型旋转防喷器最大工作压力为()。A、7MPa B、70MPa C、3 发布时间:2017-07-12 17:47 │ 来源:www.tikuol.com 题型:单项选择题 问题: FH206-70型旋转防喷器最大工作压力为()。A、7MPaB、70MPaC、35MPaD、20.6MPa
题型:单项选择题 用方框内所给词的适当形式填空,每词只能用一次。(5分)小题1: He is _______ for Sanya tomorrow.小题2: Congratulations! You are the ________ in the girl’s relay race.小题3: Smoking is _______ for your lungs(肺).小题4: You’d better brush your ________ before you go to bed.小题5:I have a terrible cold. I don’t feel like _________. 查看答案