�??????�

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

??(12??17??)?,12?????17??,??72??????144????????????240??(10???),??21??,?????

???????????????????????54?,??(?????????????),?????????????24??????????(?????????????????????)60???????????????,???240?????????????

???21??:

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

2.??

3.????????????????

4.??

5.??????

6.???

7.?

8.?????????????

9.???

10.??

11.??

12.??????????????

13.?

14.?

15.?????

16.??

17.??

18.??

19.??

20.??

21.?????

???,???39????????????60???????????????

??240???????????????????????????????????????????????????????????????????????????????????????????????19??(?????)?????????????????5??,??24?(????????????????????)?

???5??:

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

??????????

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

??:

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

???????????????????????????????????????????????????????????????????????????????????????????????????????????????12???

??24??(?????????????????)?????????????

????240??????????

?54?:

???????????????(40??????????):?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????;

??(6???):?????????????????????????????????????????;

????(2??????????):?????;

??(6??):????????????????????????????????????????????????

?????????????,???3??????,??????????????(??)????????????????

????????240??(????)?????????????????,??,????

?,????????60??,??????????,???????????,?????????

240??