????:1??????:?????V

2???????

3????????????

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

5???????

?6?17??????? (????? ??)??????????????????17??????,?????????,??????????????????????6??????????18????,???,?????????

??,??????“??”?????????6????15??,?????,?????????????????,??????????????,??“?”???

?????????,??????,19??????20???????????????21??????24????????????????,??,????150~250?????????,??400???

??,18??,??;19????20????????,???????????????????????????????????????????????????????????,??(??40~90?????????)????(8~11?????)???;21?24??,??????????,??19????20?,??

??,???????????,??????????,?????????,????????????????????(?) ????:???