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

2??????????

3?????????

4???????

5????????

??2????????21?? (??????????????????????????????? ????)?????????????????,????????????,???300????????????????,?????,???????????,????????????

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

??“????”,??? ?? ???

????,?????????,?????????????,??????????????????????????,??2?????????,???B?????????????,???????????????????????,???????????????

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

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

“?????????????,??????????????????,????????,??,?,????”?????????????,???,?????,???30????50????????????,??15????????????????????20????????????

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

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

“??24????????????????????????”????????,?????????????????,?????????????,?2??3?????????,??????60?????70???????????????,????????????

????,?10000??????,???????????????“???”?,??,?????

?????????,????????????:“?????24?????????,??????,???????,??????????????,????????????????????????”(??)

??????????????:?????