那你說人類研究太空是宏觀呢還是微觀為主?
那你說人類研究太空是宏觀呢還是微觀為主?
• both - 簡單的例子是太陽。這是一個多粒子體係,這裏既有個別原子的聚變反應和碰撞(微觀),也有 -走你- ♂ (47 bytes) () 01/27/2013 postreply 15:22:52
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