悬浮物的颗粒较大,它们在水中比较稳定。

题型:判断题

问题:

悬浮物的颗粒较大,它们在水中比较稳定。

考点:锅炉水处理工锅炉水处理工题库
题型:判断题

已知集合S=R,A={x|x2-2x-3≤0},B={x||x-2|<2},那么集合∁R(A∩B)等于(  )

A.{x|0<x≤3}

B.{x|-1≤x<2}

C.{x|x≤0,或x>3}

D.{x|x<-1,或x≥2}

题型:判断题

在一次函数y=﹣2x+5的图象上有两个点A(x1,y1)、B(x2,y2),已知x1>x2,则y1﹣y2(    )0.

题型:判断题

用所给单词的适当形式填空(每空1分,共5分)

grade      fail        great       get        because

Dear Dad ,

The day before yesterday was Father’s Day .I couldn’t celebrate it for you because I was busy taking the high entrance exam . But I have said “I love you, Dad !” in my heart many times .

You are an ordinary (普通的) man ,but in my eyes, you are the小题1:father in the world . Every time I have trouble, you always give me advice and help me out. I remember once I小题2:in a competition ,and I felt very upset . Instead of complaining, you just said to me quietly, “It doesn’t matter . A real man must learn to face many failures (失败) in life bravely .Cheer up !”

Dad,I am not going to buy you anything as a present小题3:I don’t think it express my thanks to you .I’ll try my best to get good小题4:.I think that is the best present you are looking forward to小题5:. I’m sure I won’t let you down .

Hope my dear dad is healthy forever.

题型:判断题

根据对患者人身造成的损害程度,医疗事故分为()级。

A.三

B.四

C.五

D.六

题型:判断题

在微机中,西文字符所采用的编码是______。

A.EBCDIC码

B.ASCII码

C.国标码

D.BCD码

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