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【简答题】
什么叫共轭酸碱?指出 CH 3 CH 2 OH 的共轭酸碱。
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反馈参考答案：
举一反三
【单选题】If you see that something horrible is about to happen, what will you try to do?
A.
resemble it
B.
decline it
C.
prevent it
D.
inhale it
【单选题】If you see something from the sidelines , do you (a) take part in the action, or (b) stay away from it?
A.
(a) take part in the action
B.
(b) stay away from it?
【单选题】If you see something on the back burner, will you ____________?
A.
be interested in it now
B.
look at it later
C.
look at it first
D.
work hard to make it a success
【单选题】I have watched death from the sidelines. If you see something from the sidelines, do you _____?
A.
take part in the action
B.
stay away from it
【单选题】Usually, if you feel something wrong, you may go to see your regular doctor.
A.
Y
B.
N
C.
NG
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