?? ???????4.7?? ???15????
????:1???????????:??????
2?????????
3???????100?????
4???????
5???????????
???????11???22? ?:11??22????20?40??(?23.21??????????,??120.23??)??4.7?,?15???
?? ????:??????????????????????11???22? ?:11??22????20?40??(?23.21??????????,??120.23??)??4.7?,?15???
?? ????:???????????????????:1???????????:??????
2?????????
3???????100?????
4???????
5???????????
???????11???22? ?:11??22????20?40??(?23.21??????????,??120.23??)??4.7?,?15???
?? ????:???????????????