??????“???????” ??2671?
?????????????????(??????????????????)
?????“????????????” ???2671?????????
??????????????????????2??????????????20?? (????????????)???????????????20?????????:??,????????????2????????19????24????,??2671??????????????????(??????)3???
????????????????,??2????19??????????????24??,????16.9?,?64.7????????,?????????,??,?????????35%,????20%?
??????,????????,????????????,????????????“?”;??????,??????????“12+N”?;??????????????,??,??? ??:???????????????