?? ??????????? ????????????
????:1????????:??????
2???????
3???????????
4?????????????
5??????
????1????????????29???? (???? ???)1??29??????,??????????????,1??????30?2????????2???????????????????,?????????,?????,?????
?,??,?,1??30??31???????????????,?????????,?,?????????,??????
????????????????,????10?????????????20???,???????20?30??,??????3??????10??????2????2????????,???????????2???????5?????????????,???????5?????????????????????10??,??????10???15????????????,30?31??,??????4??,?6?????????????????7??????
???,??,????????,?,???????????,???????????,??,????
????,???????,?????,??????,?????????????????????????????????????????????(???) ????????:?????????