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濡充娇ㄨ涓ㄨ绂诲фユ锛ｅ瀹规娴璇锛瑕t = 0跺诲涓㈤瀛灏涓涓诧跺拌捣圭堕达灏辫界哄

浠ヤ浜

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绫冲

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姝わ绫冲╃ㄥ琚板涔

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绉瀛涔浠ラ╀299,792,458杩涓板锛涓涓存逛究板300,000,000锛锛涓鸿涓板瑰浜涓绫崇灏扮逛绮惧害锛涓瀹涔稿樊甯稿涓剁璇寰澶版氨借存逛

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