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题库 / Prep2007E1-SC-133
In the past several years, astronomers have detected more than 80 massive planets, most of them as large or larger than Jupiter, which circle other stars.
most of them as large or larger than Jupiter, which circle
most of them as large or larger than Jupiter and circling
most of them at least as large as Jupiter, circling
mostly at least as large as Jupiter, which circle
mostly as large or larger than Jupiter, circling
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（2）some of them/some用于独立的句子，不能作modifier引导从句
（3）some of them/some也可以用于独立结构，如同位语，如：
This model explains all known subatomic particles, some discovered only recently. 类似于名词+分词作同位语
Tom did many travels, some of them places of interest. 名词+名词作同位语
C，astronomers have detected more than 80 massive planets, most of them as large as or larger than Jupiter. 名词+形容词作同位语，补充说明planets
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