正常情况下,空气中二氧化碳含量为0.03%,含量较高不利于身体健康,教室内有50位师生,每分钟呼吸15次……急正常情况下,空气中二氧化碳含量为0.03%,含量较高不利于身体健康.国家科技监督局在1
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 21:16:19
![正常情况下,空气中二氧化碳含量为0.03%,含量较高不利于身体健康,教室内有50位师生,每分钟呼吸15次……急正常情况下,空气中二氧化碳含量为0.03%,含量较高不利于身体健康.国家科技监督局在1](/uploads/image/z/4500751-31-1.jpg?t=%E6%AD%A3%E5%B8%B8%E6%83%85%E5%86%B5%E4%B8%8B%2C%E7%A9%BA%E6%B0%94%E4%B8%AD%E4%BA%8C%E6%B0%A7%E5%8C%96%E7%A2%B3%E5%90%AB%E9%87%8F%E4%B8%BA0.03%25%2C%E5%90%AB%E9%87%8F%E8%BE%83%E9%AB%98%E4%B8%8D%E5%88%A9%E4%BA%8E%E8%BA%AB%E4%BD%93%E5%81%A5%E5%BA%B7%2C%E6%95%99%E5%AE%A4%E5%86%85%E6%9C%8950%E4%BD%8D%E5%B8%88%E7%94%9F%2C%E6%AF%8F%E5%88%86%E9%92%9F%E5%91%BC%E5%90%B815%E6%AC%A1%E2%80%A6%E2%80%A6%E6%80%A5%E6%AD%A3%E5%B8%B8%E6%83%85%E5%86%B5%E4%B8%8B%2C%E7%A9%BA%E6%B0%94%E4%B8%AD%E4%BA%8C%E6%B0%A7%E5%8C%96%E7%A2%B3%E5%90%AB%E9%87%8F%E4%B8%BA0.03%25%2C%E5%90%AB%E9%87%8F%E8%BE%83%E9%AB%98%E4%B8%8D%E5%88%A9%E4%BA%8E%E8%BA%AB%E4%BD%93%E5%81%A5%E5%BA%B7.%E5%9B%BD%E5%AE%B6%E7%A7%91%E6%8A%80%E7%9B%91%E7%9D%A3%E5%B1%80%E5%9C%A81)
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