問題詳情
【題組】75. The passage supports which of the following statements about the relationship betweenthe epicenter and the focus of an earthquake?
(A) P waves originate at the focus and S waves originate at the epicenter.
(B) In deep events the epicenter and the focus are reversed.
(C) In shallow events the epicenter and the focus coincide.
(D) In both deep and shallow events the focus lies beneath the epicenter.
參考答案
答案：D
難度：適中0.522388
統計：A(11),B(8),C(8),D(35),E(0)
用户評論
【Mac Liang】評論
...the morecommon shallow events, in which the focus lay just under theepicenter, and deep events, with a focus several hundredkilometers down.