TOEFL Reading: ETS-TOEFL阅读机经 - W22MK6DLC8P569HYL$

How is paragraph 5 organized A. The sequence of earthquake stages is given, and the effect of variable stage length on earthquake prediction is explained. B. The earthquake stages are named, and the most important stage is illustrated with a specific earthquake event. C. The sequence of earthquake stages is given, and evidence is presented that the intervals between stages are roughly equal in length. D. The earthquake stages are first named, and each is then described in greater detail.