(1/2)ҳ
ͣŬҪ˵ʲôǵȴҡҡͷεӦðɣʲôʱҪ
ʱͬĺŷزһ˵ǾˡЦ˵
Ļ˵ͷ, ȻŶ˵ܣ˰ɣǵߺŷɴزտظʹõģôˣǵʧҲ̫ˡ
ģֻһ, ǿûô, ÷ɴ档ſ˵زգſ۲ѣû취ֻʹˡ
ĻСŷȻЦžʹչƷһЩصĽܡߵһöͶصĻǰ棬ƳʵӦ߶ȫʽػɣоչôˡ
νȫʽػָöвֶԽлգҲȫտظáͨ£ɻʽظͺŻһֻǻһԽзʽ䣬ȻظãӶͳɱ
أпʼԻֽлգҲļ˻ķɱ
һ⣬Ŀǰû취лյľǶԼԼֹʹõ漶
漶ԺԲ㣬Ϊ漶Կǻһ֣ҲԿǵһ, ̫հڶɳһרͷŵƽ̨˵ǡ
ҲΪԣ漶ԿһֹֹõĹջ٣ûʲôɻյļֵֹijɱռηɱĺһ֣ϿԺԲ
֮£Ȼռöɱİٷ֮ʮʮңǴͷһֱʵܶػҵоζԶлظá
Ҳһһֱڽⷽо֮ǰҲй飬ȡһijɹ
ԶöչʾĽľȫͻdzĸȤʵϲֹƣſЩԱҲͬʮָȤ
¶Ȥɫ漴ЦŽܵ˵ûǵĽľȫػģ, ǽľȫػ1:3ģ͡
˼,
(1/2)ҳ,һҳĶ
ǩĶ