?? ???3.2?? ??????????10????
????:1???50????:???????????
2???????1500
3????????
4????????????
5????????
??????????10?28???? ?:10??28???15??53??(???43.39?,?83.67?)??3.2??,??10????
?:???? ?????????:??????????????????????10?28???? ?:10??28???15??53??(???43.39?,?83.67?)??3.2??,??10????
?:???? ?????????:????????????????:1???50????:???????????
2???????1500
3????????
4????????????
5????????
??????????10?28???? ?:10??28???15??53??(???43.39?,?83.67?)??3.2??,??10????
?:???? ?????????:????????????