?? ???23???????????????????????
????:1????????????:????????????
2????????
3?????????
4?????????????
5?9??????
??????,????????????23????60?????,??????????
????,??????43????????????5???12??????60?????
??????????????????????????????????????10??30?????????????????????????
?????????????,?????5?????????3??????,????????????????,?????????????????,????“??????????”?
(????????????????????????????? ?????? ???? ????? ??? ??? ????23?????????????????)
?????????:??????????????????