(1/2)ҳ
ӣȻ˴𰸣漴˵˵ɣʲôҪǰġ
ô˵ҲǿڽģҪǵũƷȽܻӭԵһЩط϶ԭֺģʽ̫⣬ϣܹ뵽ĿɣȻֳɡ
ǵǴһֺ̣ΪסſЩôһIJˣDzɡ
ſĻҲЦŵ˵ͷ˵ҲûôûҪڸط
ҵҲȺط̸̸ǻȤġЩɳĮĵرͷﲻֵǮÿתаܹΪǻһʷdzɹ۵棬Щô֪ء
ƶһ£Ȼ˵˼ιҪҲֻ֣ܹó̫ͨˣûκƣҪռõĹɷݺͷֳɶٰˡ
ǵԵĻǴӦǣҲDzԡ
߶ԼվУ֮á
ںһЩŵ⣬һͷԺزԼطϵ쵼ͨͨҲҪ̫ߵطҪδû˼ֻ߳˻һЩɣ֮ⷽDZԴѡһЩɱߵĵȷҲҪΪ̰Сˣʱɾ鷳ˡ
ףллܡͷӦ
Ʒũҵҵ棬⼸귢չҲdzѸ٣ܹɴܻԼʮгͷţʹﵽʮҡ
ǻйģÿΪDzëԼ⡣ڹģɹ۵ţȺ˵Ⱥ࣬ȥȫǴų˲ʮֻɡ
ΪЩţʮ͵ഢأҪഢƷЩţ
֮⣬ũDZĽոѣԼϲʳ߽ϣԼʳӹЩ϶Щţ
Ȼͷţףÿ춼ҪĴϣҲǷdzɹ۵ģĿǰ˵ǺũҵһÿЩţijˡ
(1/2)ҳ,һҳĶ
ǩĶ