进行断续开车试运转如果发现异常声音及碰擦,应立即停车检查并进行调整。()
参考答案:对
根据首字母提示在空白处填人一个适当的词语,使对话内容完整正确。
Kate: Hi, Mike! W did you come back from Germany ?
Mike: Two days ago.
Kate: How was your t ?
Mike: It was wonderful. I had a good time.
Kate: Oh, I like your s . Is it new ?
Mike: Yes. I g it in Germany.
Kate: I really like the colour. It l good on you.
Mike: Thank you.
Kate: Father's Day is c . It's on the t Sunday of J . It's also my father's s birthday
this year. I will send him one just like y as a gift.
Mike: Good.
在下列物质的溶液中,滴加氢氧化钠溶液,能产生蓝色沉淀的是( )
A.CuSO4
B.FeCl3
C.HCl
D.H2SO4