????????????????????(?)

?“??????????????” ??????????2671????

??2?????????20?????????????????????? (?????????????)??20?:????,????2??????????19????24?????????,?2671?????????????????(??????)3??

????????,???????2?19??????????????24?????,????16.9?????????,??64.7?????????????????????,??,??????????????????,????35%,?????????20%?

??,??????????????????????????,??????????????,?????????“??????”;??????,????????????“12+N”?????;??,??,??? ??:????????????????

??

??:???????????,??????????,??????????????