语法点--- is a

2014-09-09 开源中国

1、A is  B 、A,B….和 A,which is…. a. A computer is a fast and accurate system that…(A is B) b.Wondows CE ,a portable version of  Wondows  95  for PDAs , sells very well .(A,B) c. The computer , which is a computing device , has greatly suppored science (A,which is)


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