????:1???????????:??????

2???????????

3??????3000?

4???????????

5??????????????

???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??(?)

???:?????