某学校地理兴趣小组在平地上用立竿测影的方法逐日测算正午大阳高度如右图垂直竖立一根2米长的竿op正午时测得竿影长op′通过tan=op Template




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tomski某学校地理兴趣小组在平地上用立竿测影的方法逐日测算正午大阳高度如右图垂直竖立一根2米长的竿op正午时测得竿影长op′通过tan=op coloring