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【判断题】
电离度( 解离度 )和电离常数都可以用来比较弱电解质的相对强弱程度,因此, α 和 K a (或 K b )同样都不受浓度的影响。A.
正确
B.
错误
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举一反三
【单选题】—You don’t seem to be quite yourself today,Jim? —I’m suffering from a cold.Nothing serious,__________.
A.
yet
B.
indeed
C.
though
D.
anyway
【单选题】. ---You don’t seem to be quite yourself today. What’s wrong? --- Oh, I'm suffering from a cold. Nothing serious, ____.
A.
though
B.
yet
C.
indeed
D.
anyway
【判断题】No? You don’t seem to be as gloomy as you normally are. Are you sure you are OK?
A.
正确
B.
错误
【单选题】---You don’t seem to be quite yourself today, do you? ---I’m suffering from a cold. Nothing serious, ____.
A.
yet
B.
indeed
C.
though
D.
any way
【单选题】—You don’t seem to be quite yourself today. What’s wrong? —Oh, I’m suffering from a cold. Nothing serious, _____.
A.
yet
B.
though
C.
indeed
D.
anyway
【简答题】解方程组： （1） ，则x= _________ ，y= _________ ； （2） ，则x= _________ ，y= _________ ，z= _________ ．
【简答题】解方程：若 2 9 （0.6+x）= 1 3 ，则x=______．
【简答题】解方程 | 1-x 2 |=3 ，则x=______．
【单选题】—You don’t seem to be quite yourself today. What’s wrong? —Oh, I’m suffering from a cold. Nothing serious, _____.
A.
yet
B.
though
C.
too
D.
but
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