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【单选题】
下列化合物在水溶液中，碱性最强的是A.
氯化四甲铵
B.
甲胺
C.
二甲胺
D.
氢氧化四甲基铵
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反馈参考答案：
举一反三
【单选题】Today, railway networks in China remain at the stage of()
A.
expansion
B.
stable
C.
slow
D.
quick
【单选题】A number of railway workers on strike today because they demand a higher pay.
A.
are
B.
is
C.
being
D.
were
【单选题】__________you were coming today, I’d have met you at the railway station.
A.
Have I known
B.
Had I known
C.
I have known
D.
I had known
【简答题】会计信息质量的相关性要求，是以可靠性为基础，两者之间是统一的，并不矛盾。( )
【简答题】颗粒剂的质量检查包括[填空﹙1﹚]、[填空﹙2﹚]、[填空﹙3﹚]、[填空﹙4﹚]、[填空﹙5﹚]A. B. C. D. E.
【单选题】"This railway was opened in 1881 and is still operating today."一句可以在哪里停顿?
A.
was 与opened 之间
B.
1881与and之间
C.
and 与is
D.
operating与 today之间
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