?????????2??????????????17????????????(?????????)??????????????,?????????16???,?????????????

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

  ????????????????

“???????????,???????????????,????”???????????(Jonathan Reynolds)??????????????????

??,???????,???????25%????????????????????????????

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

????:????????????

??

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