本文主要介绍了四种空语类中的两种,PRO和pro,并探索这两种空语类在汉语中的体现. 此外,还提出了汉语中空语类PRO和pro存在的问题.%This paper mainly studies PRO and pro in Chinese on the basis of introducing the theory of empty categories defined by Chomsky.Besides, it also puts forward the problems in current studies.
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