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

2????????

3???????

4??????????

5???????800??

???????7?17????? ?????????????,??10??????????(7??17-26????????????),?????????????????????????????,??60~120??,??150~200????,????????????????????300??;?????3~7????,??????1~2?????????

?:

17-20????????????,?????????????????????????????,?????????????,????????????????????????????,????,???

21-23?????????????,??????????????????????????????????????????,??,???????????????????

24??,??????????????????????????

21-24???????????????,????????

??

????11-14?????????(7?27-30?),?????????????????????????????????????????????????????40~80??????,??????100~150?????????????????

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

1???

20????,????????????21??,??????,??????????,?????,?,????????

2??

??????10?????,?????????????????????,?35~39?,???????????40??????

3?????

??????10????,?????????1~2?????????????????,?1??????????????????

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