??:????????????“??????????”??

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

??????8???19? (???)?????????19??????????????(???????????????????)???????,??“??”?????????,?????????????

???????????????????,?????“???”?????,?????????,???(???????)????

???,?????????????????,??:?,????;???????????????,????

??????????????,??????????????,?????????????????????????????????,???????“?”???????,?,???????????????,???????????????????????????????????????????,???????????????????????

?????????,???????????????,??????(???????)?????????2.2??????????,?????????????3.9???????,???6000?????????,?103???,??????????

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