gre的机经对我们的备考有很强的参考价值，为了方便大家，下面小编给大家带来GRE阅读高频机经原文：星系吞食，来看看吧！
GRE阅读高频机经原文：星系吞食
. 星系吞食
Galactic cannibalism refers to the process by which a large galaxy, through tidal gravitational interactions with a companion, merges with that companion, resulting in a larger, often irregular galaxy. The most common result of the gravitational merger of two or more galaxies is an irregular galaxy of one form or another, although elliptical galaxies may also result.
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