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题库 / Prep2007E2-SC-122
The features of the floor of the Kasei Valles on Mars look just like those at the base of Antarctic ice streams, so it suggests that possibly it was flowing ice that carved the giant Martian channels previously attributed to cataclysmic floods.
so it suggests that possibly it was flowing ice that
a suggestion that flowing ice may have
to suggest flowing ice as possibly having
suggesting that flowing ice may have
which is suggestive of flowing ice having possibly
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抽象性名词做同位语时，要求抽象性名词既可以概括主句内容，题目前半句描述的是一个事实， 可以用finding/phenomenon/fact等词来概括，但用suggestion概括，语义不恰当。
james voiced the idea of going out for pizza, a suggestion that was well received by his hungry friends. 这里主句的内容就可以用suggestion来概括。
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