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      <title>护栏旁的“呼呼声”，原来不只是风声</title>
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      <description>开车经过护栏时，为什么会听到有节奏的“呼呼声”？从一次日常疑问出发，了解声音反射与散射背后的物理趣味。</description>
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      <title>【实测震惊】一瓶红酒两瓶啤酒后，我的酒精竟然要8小时才能代谢完！</title>
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      <description>用几十块钱的微型酒精测试仪做出的饮酒代谢实测：一瓶红酒加两瓶啤酒后，我的血液酒精浓度显示大约需要7–8小时才能代谢完。文章解读了测试仪原理、实测数据与酒驾安全提醒，供参考。</description>
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