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【简答题】
A．It's bigger than he has imagined. B．It's much more brighter. C．It's smaller than he has thought. D．It's full of furniture.
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【单选题】两种分子酸 HX 和 HY 的溶液具有同样的 pH 值,则这两种酸的浓度
A.
c(HX)=c(HY)
B.
c(HX)>c(HY)
C.
c(HX) < c(HY)
D.
无法判断
【简答题】重大危险源辨识的依据是物质的（）及其数量
【简答题】阅读理解，回答问题。 I'm Daming. I will go to Dalian for my holiday this summer. I went to visit my grandma on the farm last year. It was interesting there. There were many animals. And I visited my cousins,too...
【简答题】两种分子酸HX溶液和HY溶液有同样的pH值,则这两种酸的浓度____相同。____
【单选题】--I went to Dalian for holiday last week. --__________.
A.
So did I
B.
So was I
C.
So I did
D.
So I was
【简答题】民意测验问卷的基本结构一般包括哪些?
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