单项选择题

A．Neglect the problems and pay chief attention to its benefits.
B．Make improvements to the system.
C．Abandon the system and build a new one.
D．Introduce a better system from the United States.
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单项选择题
A．She has not bought him a gift yet.B．She bought him a book.C．She bought him a case for his coin collection.D．She bought him a watch.
A．She has not bought him a gift yet.
B．She bought him a book.
C．She bought him a case for his coin collection.
D．She bought him a watch.
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