太阳的能量来自何方?太阳从亘古就散射着耀眼的光芒,但是,太阳的能量是从哪里来的呢?有没有烧完的一天?或者说,太阳的能量没有终点?那和还未发明出的“永动机”有什么区别呢?

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/15 13:09:43
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