??????????????52???????

????:?????:??????vx

??12??????28?????????(??? ??????????????)??????????28?,?????(27???????),?322?,??52?????????????,318???????????????????

??????????,?????????7?10??(?????12????27??1?????5??),?,???

???????,27?,??85.2%?

????????????????????,???47.8%,?,?28%???????????????18?19???,50???59????????????????????

???????????,???17????,?,?17????,?4??????????????(?????) ?????????:??