?? ???????? “????”????????????
????:1?????????:??sn??
2??????
3?????????
4????????
5??????
?11?????????????22? (??? ??????????)22?????????????,????????????,?“??????????????”?,????????????,?????,?????
11??22?????????,????? ???????????????????????????????,???????????????????????????36?,??????????????????????????,????,??????
?????????????,????????????????????????????????????????,??????????10?????????????????,?????????????????,??“??”????,?????????????????2200????????,???????????????????????64%,??????????????????,??????,?????,????????????????
11??????????22?????,???????????????????????????? ??????????????????????,?????????,???????????????????8????,?????????2000?6??“F??????????????”,?????????????????
??????????????????????????,?,????????????????????????????,???????;??????????,???
???????,???????,?????????,????“?”,???????,?????????????“??????????”???(?)
????:?????