?? ??1.7??????????? ???2.6????????
????:1??????????:???????
2????????
3??????????98?
4??????
5???????
?,????1.7??,?????6.3???????????1?????????????10????,?????????????????????2.6?????
???????,?????????????,??????????“??????????”,??????????????,??????????????????,??“????????”?????????????????????“???”?
????? ???????:“??”??????“??????????????”?,?????????????????????
????????????????????????????,??????“??”??????????????,???????????1000??????????????????,??,??“?????????????????”????,??
????????,??????????????????????????,???“????????????????”?????????????????????????“?”?????????,???
??????????? ??:?28.6?????????,????700????,???8500????????,???12?????(??) ???:?????????????