???????????6????????19??? ???,??,?????????18??,????????????????????????????????????????????,??,??????,?????????????,???

????,???????,????????????????????????8500?????????????????????????,???

??,??????????6????????????????,???????????1.3????,???????142??3600????????????????????,12?????????,???????????3700????????????? ?????????????????:??????????? “???????”????

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

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

2?????vx

3??????????

4??????150??????

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

???????????6????????19??? ???,??,?????????18??,????????????????????????????????????????????,??,??????,?????????????,???

????,???????,????????????????????????8500?????????????????????????,???

??,??????????6????????????????,???????????1.3????,???????142??3600????????????????????,12?????????,???????????3700????????????? ?????????????????:???????????