??????????(???\/1800 2000=3800)?
????????(???\/0 2000?00=1600)?
????????????(???\/800 2000=2800)?
?????????(???\/2200 2000=4200)?
???????????(???\/2000 2000=4000)?
?????????,????????????????5dS?????,????????,????????
??????,??????????
???????,??????????????!????????????!
???!??,??????????!?????????????????????????!擖/p>
?????????????,??????????????,???????????????????????
?棗!擖/p>
??????,???????(Lp:6400?00=5700)?
???????????????!?????????????,?????1??????????????????????!?????????!???1)
??:??,????????????,????????????????????!擖/p>
??????????(???\/3500?3000)?
???????????(???\/3500?3000)?
????????(???\/4400?3900)?
(???:?????????????????,??????????9,??|?????:??)
(???\/2400,???\/2400)
(??:?????2???1??????1??
1:???????????????????1????????
2:?????????????????????????????????,1????????1??????????????)
????,??????,?????????????,????