???? ?????????????

????????2?10???????????(??????? ??)?????????????“????”?????

??,?2??????12??????????????????????????????????????0.01%?0.1%?0.1%?0.2%?0.3%,???9-30???

???2????15???????????????????????0.15%?0.25%?0.4%?0.6%?1%?????20-58???????

??????,???2???10??????????????????????????????,???650???700??(????)