????????1.7?? ???????????2.6???

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

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

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

???? ??:“??????????????”????“?”??,???

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

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

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