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

????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?????(???????????)