galileo was convinced that natural phenomena, as manifestations of the laws of physics, would appear the same to someone on the deck of a ship moving smoothly and uniformly through the water as a person standing on land.这题里面划线部分到底是什么作用？我原本以为是举例，可是问了一个xdf老师他又说不是，那到底是什么作用啊？
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发表于 2009-3-7 11:18:00
