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题目材料：

The primary purpose of the passage is to

A.explain how a scientific law was inferred from processes that were first revealed by photographic evidence
B.reconstruct a chronology of events in order to explain the absence of certain expected lunar features
C.show how physical evidence has been used to substantiate inferences based on the application of a particular methodology
D.suggest how conclusions are formed about the absolute ages of geological features
E.illustrate how a general principle has been used to draw certain specific conclusions

E显示答案

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以上解析由考满分老师提供。