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

?,????????????,???????,???????,???,??????,?????????????,?????????

???,?????,??,?,??????????????????????????????????????????????????(??) ??:?????????????????