?????????? ??????????????
???????????????10??????????????,?????
??,??????,????8.2?,?????????????????1??????????,??????????0.7????3.9????7.9??13??????????;???,?????????????,?????????????????,?????1?????
??????????????????,“????????,???”?,?????????????????????,?????????!
??,??????,??????????,??20????????????,21??20???????????,?????????????,21???????????22?,????????22????20?,??????,???????????,???
??????????,????????,???????????????????80??????????,????,??“??????????”????????????,??????????????“??”????,???????????????????????????????,????“???????”???12????????2??????????0.5???????????,????,????????????
???????,???:????,?????????????????????,??????????????????,23?????,?,?????????,24-27????????,??????8~12??????????14~16??????,??,??????????
??????????,???????????,??,??????????????????????,??????????????,??????????????????
????23???????????,???,?????????????????????????,??????????,???????????,?????
???????????:???????
??