某人站在一个较大的山谷里,想估测山谷里的宽度.他大喊一声后经过0.3秒听到左山崖反射回来的声音,经过0.6秒某人站在一个较大的山谷里,想估测山谷里的宽度.他大喊一声后经过0.3秒听到右
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 11:05:07
![某人站在一个较大的山谷里,想估测山谷里的宽度.他大喊一声后经过0.3秒听到左山崖反射回来的声音,经过0.6秒某人站在一个较大的山谷里,想估测山谷里的宽度.他大喊一声后经过0.3秒听到右](/uploads/image/z/13710022-70-2.jpg?t=%E6%9F%90%E4%BA%BA%E7%AB%99%E5%9C%A8%E4%B8%80%E4%B8%AA%E8%BE%83%E5%A4%A7%E7%9A%84%E5%B1%B1%E8%B0%B7%E9%87%8C%2C%E6%83%B3%E4%BC%B0%E6%B5%8B%E5%B1%B1%E8%B0%B7%E9%87%8C%E7%9A%84%E5%AE%BD%E5%BA%A6.%E4%BB%96%E5%A4%A7%E5%96%8A%E4%B8%80%E5%A3%B0%E5%90%8E%E7%BB%8F%E8%BF%870.3%E7%A7%92%E5%90%AC%E5%88%B0%E5%B7%A6%E5%B1%B1%E5%B4%96%E5%8F%8D%E5%B0%84%E5%9B%9E%E6%9D%A5%E7%9A%84%E5%A3%B0%E9%9F%B3%2C%E7%BB%8F%E8%BF%870.6%E7%A7%92%E6%9F%90%E4%BA%BA%E7%AB%99%E5%9C%A8%E4%B8%80%E4%B8%AA%E8%BE%83%E5%A4%A7%E7%9A%84%E5%B1%B1%E8%B0%B7%E9%87%8C%2C%E6%83%B3%E4%BC%B0%E6%B5%8B%E5%B1%B1%E8%B0%B7%E9%87%8C%E7%9A%84%E5%AE%BD%E5%BA%A6.%E4%BB%96%E5%A4%A7%E5%96%8A%E4%B8%80%E5%A3%B0%E5%90%8E%E7%BB%8F%E8%BF%870.3%E7%A7%92%E5%90%AC%E5%88%B0%E5%8F%B3)
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