??�?????????�

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

????????????(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????