????????????

???2???????????????????5??? ?“??”5????,??3????????????????4????4??7.3????????????,?????9????

??,?????“??”?

?????????????????????????,??????????????????????(?????S)???????,????????????,???,??????????????????5??????

????????????,??,?????????????????????

?“?”???????????,?,1???21?????2???3??142?,??25??????2?????2??,?????65?46.3%,????68.6%?

??????,???????????????,??,???????????????(??) ???:?????