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

2?????sn

3?????????

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

5??????????

???2??????14????? ?????RBC-???,??13?,??????????????????????????14???????????(????????)?

???:RBC-?

???????????????????????,??,“???????,????,????????,????????”

????,???????2????????????13????,??,??????????????????????????,???????????????“???????????”?

?,??61??????????2?????????????14?16???,?????????????????

???:?????