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3?????????
4?????????
5?????????????
??6???28? ????,6?28????,??????????????(CNNIC)????????????????????«??»(????«??»)?«??????»????,??????????????????????????????????,???????????????,??????????????????9?????????????,???????????“?”???5.3????????????2.3????
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??????????????,?????????,?“90????????????????????”“00?????????”“??”???????????????????“90?”“00??????????”???“90????”“00??????”??????????95.1%?88.5%,?????????????????“??”?????????????????60??????69.8%?“??”???????????????????????,???????????????????????????,???85.4%,?????????????????????,?????????????27.9?8.1??2.8?????????????????????,??76.7%;???,??1.2????? ?????????:???