第4章
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第4章

    ʱʶԼIJҪǼСƾͳԲ÷ˡ
    ǣͯƵģһװȥˣŤŤȻ°ʣʼơ
    ˳ۼ״˿ʼijԷ
    Сӣϱûע⵽飬Ⱳӿʼעİþߣֱǻ޵ҪݻҪ
    С·ȫֺÿ
    СһҩζȴҲġ
    ÿյķȻ࣬Ǿ¿ɿڣ嵭ģҲСЩܾdzԵIJãСڵ˲üëչЩȻǷdzϲġ
    ټIJˮСע͵͵һڣʱɴ۾边ȻϱӶûȹڣСȴȵģҲ֪ʴŪôöСġ
    ԽһУԽԽϱڸʿⱲҪôܰ˽⿪أ
    ϸϱӸʺСìܣڼ̫IJɵͣսة౻ɱ̫Ծ̽ʹѾмһǰ˲ûа취½黳һ
    Сǰ͸ǰĻȫһжûзҲü
    ΨһIJþ̫Сˣ˵ĻûţҪֹһУõķϻһ׵ʱָ˻ӵݣ˵ĻһЩŶȡ
    СԸ͸ʽ࣬СͱŮĺӣôø֪ࣿ
    ֪ϱӸʲС֮ᣬҲΪ˱
    ˣԹȥָƣȻСܵ˺
    ҩҩƻҪ̫ҽҽһлǵÿʣ
    ⱲСҩõĻҲ
    УڵİһˣϱʱС̫࣬ȫǰ°ðΪԼӲȫѻ
    һжüͷأ
    ؼҪϸһ档
    ʻ𱬵Ƣ֪᲻ֱӿ
    ԽԽпܣɵ˼֡
    ȻʶС㲻Ҳ涼
    Ψһ㣬Ƣã治ãһԲϾѪɺӣ³Сƶˡ
    ԣ취ڵһμʱ򲻿ͷ
    Ϊ㣬СѾ극ˡ
    ˳ۺһҪú̸̸ĵӡ
    򣺡ҪôС˵СŲħˣ
    ˼ȥԼһ²˵ΪӱС׷ʣװ˸Ƿ
    û취С̫ˣҪС϶ܿģǶһΪϲߡ
    ˳ۼ״еۣôûԷؾˣʲôָЩ˯
    ҡͷҪ˯
    ˳ЩԥЦǰ˹ӲõģСƤʵĺܣһҲûʲôģСá
    ˳̾˿DZϢϢ˼ǵóԷ
    ͵ͷ֪Сݲ
    ǣԷʱ˵ȻҲ֮
    ˳֣ʾ飬ֺЦҡҡͷûʲôµģСӽDzͬأǰԼˣղŻ֪۹أ
    ˳üͷ΢£ָֻܿԭȥ
    3
    ˵Լ˯ǽڵģû뵽͵ĺǾʱ򣬱ֿţտʼװ˯û뵽װװž˯ˡ
    ֿ˯ľҡͷЦЦƤ˯˵ͦɰģ֪Լʵʵ
    ֳԹˣھ򴲱ߣҲ̲ס˸
    ˹һƣֱĵһ
    Ȼ˯ˣ֪Dzԭ򣬾˯˰ʱתˡ
    ˸Ƿ˯˵ֺԾС
    룬ʵʱҪճҪȼһ档
    ȻԼСӵп壬ϱӲ鵽Ľ͸Сġ


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