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ڵλãֻг
ͨշ
2003-11-17 18:24й걨ߣ


й걨1116<ͨշ ö໰Խ>

ĵշʱ

һֱŵֻշˡҵᱻͣҸϽȰ˵46ŮʿԭԼһճΣΪͨ˾ͻȻֵġշѡֻ˼١



Ůʿֻڶǰ֮һ죬űͨӪҵͷܶӪҵĺ벾ϵıѡҲʣ޼

13գͨͻȻֻշʽг(1114աͨ̽շ)Ӷһȳ

ͨĹ֮Ϊ 绰ĵշʱϤҵߣΣκѡ

绰Խ໰Խ

뵥շףͨΪ䱸һӷʾѣʵС1Ԫ⡱ֻûʹ£ȡ1ԪǮġ𡱡Ѱζǣ÷涨ûܶ100Ԫڵģͨڵ绰(130131133ͷֻ89ͷĹ̶绰)̻׼շѣǰ0.2ԪӺÿ0.1Ԫ绰ÿʷ0.39Ԫѳ100ԪIJ֣ڵ绰0.4Ԫӣʷ0.5Ԫӡ

շѷѷ֣绰Խ෴Խ󣬿ͨڻش߶Դ˵ʱȴڡ

޶żǰã ҲƳշԵ绰дڿɿ

ųơ 硢̻ʷѡдڿշѷǣ⣬25Ԫй ѣʾ80Ԫ£򱾵ڵ绰ǰ0.2ԪӺ0.1ԪӣͿ0.07Ԫӣ80Ԫ󣬲ڵ绰0.4Ԫӡ80Ԫڣ򱾵绰0.39Ԫӣ˫շѣ80Ԫ0.5Ԫӣ˫շѡ

ɿշѷǣ⣬20Ԫ100ӣ70ӣ30ӡ۲ԣ0.3Ԫӣ0.6Ԫӡ

ͨ ߶绰̳߶һ˲˼顣һЩȴûΪ˲⣬Ϊ˶ԸСͨ𡱡

Сͨʽ죬ϵ͵ʷѺܿӮòȻûССͨû׼ȷݣԿ϶ǣСͨѸͷչԽԽġ˫ǹ塱ͬʱӵһȫͨһСͨͬСͨƳ֮ǰȣڵ ʷѴսȻɫɫŻݷӦӲϾ

Сͨۡлշѱ׼շϡʵѽշѡ25Ԫ⣬ǰ0.2ԪԺ0.1Ԫӣ48Ԫ488Ԫл88Ԫ688Ԫл绰188Ԫ1088Ԫл估ڳ;绰˼䣬СͨƳŵѣСͨĴʩӮòû

Сͨij֣ɶͨ ġҡзΪͨ ֱƳġ绰IJԣںСͨеͶгͬʱ֤߶гӰ졣

ʯͷ

ҹֻշһֱһȻȴ˽롣˵8£ͨƳڱѣⱻ0.20ԪӣһΣͨߵ롪⣬ѡ

޷գԼߵʣһҵҵĸЦ𣺡ʯͷӡ

ԴˣһλԸ͸¶ҵʿ˵մ󡣡ͣ죬ֻеͶû൱ǶʷѼ۸ı䶯رУκα䶯пʹ䷢ҡԤ⣬ٽ100ֻûԼ95%ΪͶûȻСͨͨ ġ˫ͷ¢ϡгκεҵһ󵰸⡣˵ûԸ棬ֲϵءʯͷӡպܻܿᡰȫΧġշѡ

ĵַ:http://www.cnonline.org/2003/article/3513.html

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