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【简答题】
中和法的原理?投药中和法和过滤中和法的优缺点各是什么?
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反馈参考答案：
举一反三
【单选题】According to the advertisement, Heaven Air believes it is ______.
A.
the second best in the world
B.
the second biggest in the world
C.
the biggest in the world
D.
the best in the world
【简答题】眼球的屈光系统包括哪些结构?
【单选题】----You failed again in the maths exam yesterday. ----Don’t tell Dad about it; if he knows that ,I’m dead.
A.
as well as
B.
as good as
C.
as possible as
D.
as far as
【单选题】——Dad, please tell me when Mum_____. I miss her very much. ——She will return when she_____her task. And she will bring a nice present for you.
A.
returns;finishes
B.
returns;will finish
C.
will return;finishes
D.
will return;will finish
【简答题】The（ ）is the most important document for air cargo transportation．
【单选题】he explained , we understood .
A.
More , better
B.
The most , the best
C.
Most , best
D.
The more , the better
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