????????????淨,????????????????,???????????

??????????????д????????,?????2????????????????????kai???

???????...??20?????????a????????

?淨??????????

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

1.?????????????????????????

2.???

2.1 ???????(?????????????,?????????)??ù??????,??????????

2.2 ???? ??????,??????????kai???,??????????N,??????

2.2 ????,???????50???,??????5000????

3. ??a152w?????????????????50w??????...

????:??л???,??????????,????????320????

???????:

????????????????.10????????????????0???????20??;

??ˉ???????50???.40?????5000??????20??;

??????????20????′?0???

?????NPC?????20???????0??

?????16???? ?????22???? ???94???? ??**94??,???????????? ,?????Χ2%,?????

?????????????????.....?????6????

????40407????????????????