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一、问题提出小朋友们,想必在你们学校都会有高大的古树,你们是不是一直都很好奇它的“身高”?到底有没有一个又简单又方便的方法可以测量出古树
First, the problem raised children, presumably in your school will have tall old trees, you are not always curious about its “height”? In the end there is no easy and convenient way to measure the ancient trees