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题库 / Prep2007E2-SC-88
Because Miranda, the smallest moon of Uranus, has a large number of different surface features, including craters, mountains, valleys, and fractures, some astronomers suggest that at one time repeated impacts broke the surface apart, and after which the fragments were subsequently rejoined because of mutual gravitational attraction.
repeated impacts broke the surface apart, and after which the fragments were subsequently rejoined because of
repeated impacts on the surface broke it apart, after which the fragments having rejoined with
through repeated impacts that the surface broke apart, after which the fragments subsequently rejoined by
the surface broke apart with repeated impacts, after which the fragments having rejoined through
the surface broke apart as a result of repeated impacts, after which the fragments rejoined through
after which 指 impacts，排除ABC
broke apart 是由 impact 导致的，用as a result of表示结果
D的状语从句缺少谓语动词
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