请用篮球、木板、铅笔设计实验来说明地球是个球体。
来源:百度知道 编辑:UC知道 时间:2024/05/27 19:36:51
(1)实验方案:____________________________________________________
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(2)实验现象:____________________________________________________
(3)结论:___________________________
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(2)实验现象:____________________________________________________
(3)结论:___________________________