摘要：4．Theory is based on practice and serves practice． A．in turn B．by and by C．by chance D．in this case
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Theory is based on practice and ________ serves practice．
A．in turn B．by and by C．by chance D．in this case
查看习题详情和答案>>Theory is based on practice and ________ serves practice．
A．in turn B．by and by C．by chance D．in this case
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