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Ĺͼ۸кܶ࣬Ŀǰгкܶ˵Ĵ濴ȥ࣬ͬ׿غأģʯ۵ĺָ࣬ϣִڳʪĻX¾ͱϻˡɹʱָǿȣÿĿȺͺȣ׿أֱж

ԽԽԽãĻԭ0.0064ˣ㷽ʽĿȣף*ȣ˿*0.0064=׿ءǾͱʯۣʯۺܸߡ

PEԶ1994ձ̨ԶʼʹãصǣʹҪߣʹòĽʹĴĥ𻵣һɲʱ˳󹤡ʱ

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