ʵӳDZͺڱﲻнDz֪ΪʲôڱdzⱣӦñž⣬ͻȻŵϣӳΪֲ̾òܣԲŻָղһĻ
һ£м˰ӳǸŮӳܹһٶġϵľҲƳһһģĿʼǸŮûյ̫ŰĿͥԺеЩˣֻǿеƣ
еĴŮɽȥڷ
һãԷתߵ֣˵ҪǰǸŮҪɣҲǴ»ɫģǸŮɫɱɽҪߵöడ
Сֵ㻹ǶǸŮе˼֣һۣЦ˵˵ҲеҿԸʾһ£һǸоҪԶ֡
֣Ľƻ̽Լ̹һǮȻԡش˵
֣ʾһȻһۣ˵ԡȻֵ֣˵˼ʲôôľ룬ټǿȫ塣
ˣҴСǿı϶۹ⲻѽ
磬ҲץĹзֵģҵȱҽغˡ
Ʒô֪ʲô˼
ʱûзֵľٶĿǰûбѵ˼һ̽̽Ǹо죬֡
ԣĻ̽Dzģ֮ҲõˣΪ˾졣
ã磬ȥ˵ţ֣˻ЦŶ˵СֵܣͬˣȥǸоˡ
ǹɱ(1/2),һҳĶ