单项选择题

22（）

A．day
B．night
C．breakfast
D．health

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单项选择题
This passage is about famous ______.
A．scientists
B．personalities
C．composers
D．leaders
单项选择题
In analyzing a problem we should do all the following except ______.
A．recognize and define the problem
B．look for information to make the problem clearer
C．have suggestions for a possible solution
D．find a solution by trial or mistake
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