As Charles Darwin observed, natural selection operates whenever individuals of one genetic composition are better at reproducing than that of others.
that of others
the other
another
those of another
that of the next
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1.that的复数形式是those 2.another的用法不太会
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1.that的复数形式是those
2.another的用法不太会
登录 或 注册 后可以参加讨论