88. (29179-!-item-!-188;#058&004217)（which指代啥？）
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.
(A) repeated impacts broke the surface apart, and after which the fragments were subsequently rejoined because of（语义重复）
(B) repeated impacts on the surface broke it apart, after which the fragments having rejoined with
(C) through repeated impacts that the surface broke apart, after which the fragments subsequently rejoined by
(D) the surface broke apart with repeated impacts, after which the fragments having rejoined through（语义重复）
(E) the surface broke apart as a result of repeated impacts, after which the fragments rejoined through
想问， which是指带一个句子吗还是指代啥？按理是指代breakage啊
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