?? ???4.2??????? ????18??
????:1?????????????:??????
2??????100??
3???????
4????????
5??????150??
??10???????????27? ??,?:10??????????27?14???19???????(?23.36?,????120.48??)????4.2??,??18??
??:??? ?????????????:??????10???????????27? ??,?:10??????????27?14???19???????(?23.36?,????120.48??)????4.2??,??18??
??:??? ?????????????:????????:1?????????????:??????
2??????100??
3???????
4????????
5??????150??
??10???????????27? ??,?:10??????????27?14???19???????(?23.36?,????120.48??)????4.2??,??18??
??:??? ?????????????:????