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【单选题】
高锰酸钾在强碱性溶液中的还原产物是A.
MnO42-
B.
Mn2+
C.
Mn2O3
D.
MnO2
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皮皮学刷刷变学霸
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【简答题】小题1: What is Mary’s problem? A．Sh.e is so worried and can’t sleep. B．She can’t pass the exam. C．She can’t communicate with others. D．She can’t study English well. 小题2:Donna thinks Mary’s problem is __...
【单选题】Worried about the time ________， Mary had made a list of the sites she wanted to see in Beijing.
A.
adequate
B.
available
C.
avoidable
D.
accessible
【单选题】Why is Mary worried?
A.
She has spent too much money.
B.
She worried about john.
C.
The women's husband is ill.
【单选题】Mary's parents are worried about Mary because no one was aware ______ she had gone.
A.
of where
B.
where that
C.
the place
D.
where of
【简答题】Mary’s parents are worried about Mary because no one was aware she had gone．
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