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

2??????????

3??????vx

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

5??????

?????????,????1.7??????????????,?????6.3????????????????1????10??,??????????????????????????????2.6??????????????

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

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

??????,?????????????????????“??????????????????”?,???1000????????????????????????????????,????,????????“??????????????????”???????????,???????

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

???? ??:??????????28.6????,?700??,??????????????????8500??,????????????????12??(???????????) ???:????????