(1/2)ҳ
ԭѾļ60ˣΪʬһͻȲѽҪԵ240Ҳ˽
͡
Ұ˵ͷ
һպDZࡰļ300ˣ֮ǰĿ
ҲʲôϢ
ĿǰպϵʳĻЩˣҲȱ֡
ܣٺһǹսԱά
ļ
㸺ǽպϵĹأЩоȥ
֮ÿ˵ǼϢסҾߡʳ͵ˮ
ܣѡ100ѵսԱ
ˣʦźҲ˲ʱѵҴߣһٶ
պһҲЩ˿ˡ
˵ͷ漴ȥ
ڣʱһ¼һˡ
Ұ֪ǣʱ˿̷Ҫ¡
һ£ҪҴߡӡƶлѡҹعԭұѾܵҹչѹڰȫûˣѹ˽㣬뿪
үȻĶ࣬ҲС
ƶ⡣
ɵ32С
ͳˣǽΪѷĵͽ̡
˿λڶڵijϵ
õ֪ͨλһɰԭƻСڣȻҲ
ڳԱͷʾͬ⡣
һִԥһ漴ſڡ
ѷˣ𣿡
Դˣѷش
ڶ£2Ҫйء
ݵ2Ҫɥʬƶһͣ
ɥʬָӹٽֱ۲ʻҵIJףйɵĵԭҪӿŰʬʱ
ţһɥʬƶлʼ
ͬ鲻ͬɥʬƶмװϰװŴеۡצػƺҲһͳС
ϸһĻЩװƺ䶯
ɥʬΪģһѪ⳱ϫɢʼ;Ľֵ¥
2ҪʼѪеĻչ
ɥʬҲͶˡС
ûúһѪƼɥʬ2Ҫʹ˳֡
ɥʬָӹټͷΪ⡣
(1/2)ҳ,һҳĶ
ǩĶ