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【单选题】

The traditional approach ____ with complex problems is to break them down into smaller, more easily managed problems.

A.
to dealing
B.
in dealing
C.
dealing
D.
to deal
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参考答案:
参考解析:
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举一反三

【单选题】All these gifts must be mailed immediately in time for Christmas. [ ]

A.
in order to have received
B.
in order to receive
C.
so as to be received
D.
so as to be receiving