ڶ죬˼Լʼ硣ջ˯δѣϰֻûƼҵȥͷ
˵ʵһʼնԼʵйǵģյˣʵϧ֮ɫŷ½Ƽˮ꣬ʵȷʵǰ࣬ȻҲõӦõĺôؼʱûгûѾǰæˡ
ϰ壬лյİæġ
ֻҽģȴҿºԱ֮¡ҵδǸԣθŵ˫ֱĸʵһ
ʵһЦǴӵ⡣յĴ⽫ΪơЩ֮ģֻǸˣյǮûգȴһʵЩ졣
д˴ijʵڲҵûжֻǸˣǮԵĵ°ˣﲻؽ黳ġ
ϰ嵱һݡ˺ϰչҵļˣոм粡úһлǾʹ˱ɡ
Ƽȥͷûü˳ͣĻ棬һҾžˣֿĸ°ˣʵûҪһѱһأͬȥ
նһװƼƼ˼ɻʵ
գǺ⣿
ϰɣھǰ֮ǰ涼һװͷͬӷʽûгڣǻǽЩá
ձ˵Ůװ֮ǰõװϡͷźͷİͷҲ³ǰһͷһͷԺʮַ㡣ַӶãڶʮһȴŮӰõķ͡ƼնѸ٣Ҳ¾Ūáö˶ԷЦٲȻഺ껪Сꡣ
ҲɸСӣŴŮӷζÿ˭ûһ֮أʲô취öɫòҡѰ·𣿹ŴЩٹǿŮϰΪ¡ýֽⲻҪ鷳ý֦ǵҪĿǸտҪ
ͷϰĻͣһˡ
պƼŴȴСƿװĶʮ־ȣ뿪ձգۣСƶʱ˿ڡջڻ˯ѣСֻϳȥúձ
Сƽϻȥˡ
ϣ˱ڻԵһССŴƼ˯ʱԼһġʱҲڹ˼ŮͬݣһѪˣѵʱ࣬ҲҪʱһչˡһӾһӰɣֻҪƽ뾩ǾͺáҪƽ̫࣬ǻδDZ´鷳ġ˸ñͨ͵ʱҲõ
ϴºճѹˡ֪ҽҩá
峿ģۣDzСľݣ߲رãתͷ㿴ƼպһһŴϡӵķʽӵ·
ǰ˾ϰߣձôһһӱѹϰߵתһ㿴ݵڴţ˼ضǿ
磿ˣоôЩ𣿡
ղϲջôʱ䣬ҲѲѹɫҲ࣬ǿĵҲ
ʮһ (1/2),һҳĶ