(2/2)ҳ
СڣҲû˸һסȺǻỻ𣿡
˵˶ˣӵҪץˣ֪Ҳп˰ɣôûжòȥҸҽƣ
½֡
ɹ˲Ӷˣãã治ãء
ɶ
ĿΪʲôΪʲôö˶˵ҪУ
˸ࡣ
һֱڵűԼСڵãˣҪ
½ŵץ½ֱۣСЩµĿĸĸ
½æȻĸʵⶼҵ⣬ԭһڻС18꣬ǹ80ǰȷʵǹ涨ŮӴﵽ18ԺͿԽ鲢80Ժֹ涨˰ŮҪ20ܴﵽ鲢䣬ҪŹңĸ϶ԭ
һϰĿɱǰǿ˺ܶ࣬ϣʱǵĺӳԺѧ˵䣬ǵܹһ̵ѧĿİģĸ覴á
Ҳõ˼ԼģˣĸҲӦöģһ죬Ӧò̫Զ
½˵꣬ĿһԱץסԼֱ۵ӡ
ͣ
³һЦ˻Сȭͷ
ͣ
ˣĸֶһۡ
ðɣҪ˵ǰǸɣҿ϶ӦˣҺǻʱʮĶȥˣ18ɲ̫硣
Ҫ˵ǸɣܽܣĸˣȻϣܹںǰһѾͷǿһǾͼͣŬȡһ˵ˣϽҪӣһűء
ûס
ϾԼŮ⡣
Ҳ˵ĸͣĺӣĸףѧ˵ΣͰҲŴȥˣ˵Ǹֱѧȥˡ
ò
Ů뷨ܺá
ֻҲŮŮͣȡոĵڳԵëȻҪӡ
лл֡
лл衣
³ڸм
һ˵ĺ
½ϲЦDzǽ˺ܶࣿ
һҲˡ
2300+3300+3200+2000=10800ʮ죬ү֧֣
ǩĶ