ڶһ磬ֱսżɽ˵峤ˣҪ˳壡
˳壿ΪʲôҪ壡ϵûм룬սһؽҪСֱӲĻش
Ǻǣ峤ˣӦҲôӦӦҲôӦҵʦһǿߣ뿪壬һ㲻ͬ⣬ҾֻʦˣһλڵŭҿҪսͬ⣬Ҳ£ֱӿвڼûԼĸĸѾԼСûõʲôĶݣԸøʲôӡ
ڣôܣһ߶ǵļһᄍȻܹõǿߵʶԣ۹ֻжʣƭңսһʼЩʣ뵽۹ûһڣ;ƭԼһʱЩŭʼۼ˵СӣҪǸƭңͲˣ
ƭ㣬ǺǣϲʵɿˣЩмһѹ˲併٣صѹսϡ
սĻֺ̿Ͳ˼飬岻ʹĹڵϣ˵峤ˣ֪˳Σ
ҡͬˣ˿ͬ˵ķĹң۲ʶ̩ɽðˣҡսֲ̿һλڵŭСС峤ɳܲ
Ǻǣͬˣ峤㻹氡Ҽǵҵ峤ƺһöƬɣöƬңҿɷһ·ͻȻҿһöŵģȻԼòϣԺȥʱõõԶŰɶѰŵ뵽ЩֱӿսҪ
⣡ˣ峤ģܻܽܲս¶ɫЩΪѵ˵
ţԼҰɡ˵۾ʹʼ鿴սļ䣬ʮӺյ۾Ȼ¶һ˿ЦݣҵˣǺǣ˳һ¼ɣøлҰ峤սļijˡս˵˳£սֱͬˣȻûʲôֱͣˡ
սӻ峤ķ䣬ֱӿŵĵطŵһö״ƵƬֱ뿪ҡ
ĵ뿪ңû˵ע⡣֪ǣ뿪ҺѬԺһˣѬʵ𣿡
ţС㣬Ѿ뿪ˣܰŵˣҪҪɱ˵
ˣ֪ǹǿҲ֪ǵĿģµġѬæ˵ϾѣСǸˣ˵ɱˣСﶼû˺
Сҽ (1/2),һҳĶ