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

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

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

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

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

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

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

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