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

2????????????

3?qq???????

4???????

5??????

6???????????????21??,???,????????????????4?????????,??????????100??????,??????????4000??,???????????????????????????????????????????? ?? ?????? 6?????????????21?????????,?????????????,????????????4?????????,????????????100??,?4000???????????????,?????????????????????????? ????????? ???????? 6???21??,???????????????,?????????????????4?,???????????????100?????,????????4000????????????,????????????????????? ????????????? ??????????????? ???:?????????????