观察自然界中缠绕的茎和攀缘植物的卷须,它们的缠绕方向和生长方向有什么关系?这跟螺线管中电流的方向与其北极方向的关系是否相同?
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![观察自然界中缠绕的茎和攀缘植物的卷须,它们的缠绕方向和生长方向有什么关系?这跟螺线管中电流的方向与其北极方向的关系是否相同?](/uploads/image/z/9607287-39-7.jpg?t=%E8%A7%82%E5%AF%9F%E8%87%AA%E7%84%B6%E7%95%8C%E4%B8%AD%E7%BC%A0%E7%BB%95%E7%9A%84%E8%8C%8E%E5%92%8C%E6%94%80%E7%BC%98%E6%A4%8D%E7%89%A9%E7%9A%84%E5%8D%B7%E9%A1%BB%2C%E5%AE%83%E4%BB%AC%E7%9A%84%E7%BC%A0%E7%BB%95%E6%96%B9%E5%90%91%E5%92%8C%E7%94%9F%E9%95%BF%E6%96%B9%E5%90%91%E6%9C%89%E4%BB%80%E4%B9%88%E5%85%B3%E7%B3%BB%3F%E8%BF%99%E8%B7%9F%E8%9E%BA%E7%BA%BF%E7%AE%A1%E4%B8%AD%E7%94%B5%E6%B5%81%E7%9A%84%E6%96%B9%E5%90%91%E4%B8%8E%E5%85%B6%E5%8C%97%E6%9E%81%E6%96%B9%E5%90%91%E7%9A%84%E5%85%B3%E7%B3%BB%E6%98%AF%E5%90%A6%E7%9B%B8%E5%90%8C%3F)
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