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һǧʮ ²(1/2)
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    ɺسˣȴûôõΪǸݣǼԽ

    ɴӸղͺسĻسȻϲࡣ

    ϾԼˣسǸӣҲ׵ġҲΪЩԲ֪Ҫˣس˳ɻȥʱ˵ӺسΪԼĸˣǽԼʧȥĸҲʾϧġ

    ϾسȻľګһ㣬ȴDzɶõ˲ţԽ˰Լ߰Ʋı˵۹سˣ˿ϧ

    ԼijԱͷأҪһˡ

    뵽³ԾĴ˸׸ܵĺôˣö˶˵ģΪʲôͻȻĪǿʲôر㤵Ķ

    ûС

    Ͼǽ˼磬óأ۴ʲôطԶĹ˳꣬Լı֮ﱻİ쳣

    ûпʲôոգֻسˡ

    û˵ˡ

    ̹׶ԣ׾ý˵˼ǷdzˣҲΨһԼ˳ģ˼ȰҲΪԲƽƽĻڡ

    ҪԼ׵һ˼磬ԼͲǸ³ɡ

    뵽װǸ³׾̾һС˵ңҪңǾͲˡ

    ˵Сû˵ģֻһֹûпȥʣûȥ׾ôˡ

    ȥףȻԭͷԭôоı仯ԼͻȻӿ

    ڱܣо׺ģѹԼôţҲû˵һ䰲οû˵ĬĬŴ⡣

    ˭֪û˵ȴˡ

    ׼ôس

    ֵǣ˵⻰ƽ˿ûаѹ֮⣬ԭڻ׾ôˣΪʲôĵĺسﷺֹ

    IJ𣿡

    һ뷨Ȼ

    ˵׼ôسüͷһ˫˸ŻްĹâƲʲôһ㣬ϷһЦֵԼղŴӦģܲԼô˵ɣ
һǧʮ ²(1/2),һҳĶ
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