A group of paleontologists recently announced that a site in Utah has yielded fossils of some of the biggest armored dinosaurs ever found, fossils that are at least 25 million years older than those of any similar dinosaur type previously found in North America.
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wolfric 2013-10-29 22:51:11
those 指代fossils
tocbt 2013-11-06 18:51:07
句末同位语，使得对象关系密切清晰。 比较对象对等。 those对应fossils，一致。
Ivy_qing 2015-07-07 15:26:38
同位语
WYKMF！ 2016-11-27 22:33:51
those 指fossils！！！！
linlvyun 2016-11-18 17:31:59
同位语可以这么用
natsuki君 2016-11-10 22:01:56
*逗号后的fossils做同位语 fossils与 than 后面 those of any similar dinosaur type 平行
honeydew 2016-10-14 14:46:44
A group of… announced that… 本句逗号以前为主句。逗号后部分为同位语，加that定语从句进一步描述fossils，对句子内容和含义 进行拓展，是GMAT常见句型。those 指代前面的fossils 。
极端保守男 2016-07-17 23:17:05
句末同位语，使得对象关系密切清晰。 比较对象对等。 those对应fossils，一致。
Lottieeee 2016-07-15 15:30:48
同位語，those of ...指代其他恐龍的化石
Lottieeee 2016-07-15 15:30:47
同位語，those of ...指代其他恐龍的化石
Lottieeee 2016-07-15 15:30:46
同位語，those of ...指代其他恐龍的化石
凡糕君 2016-07-14 12:09:53
those 指代fossils
aaronzjy 2016-07-12 23:18:04
previously found in North America，当中没有was或者were；用they的话给人一种指代离they最近的armored dinosaurs的感觉，因此直接用fossils。
