????:1???????:??????

2?????????100???

3?????????????

4?????

5??????????????

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

?“??” ??????????2671????

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

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

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