問題詳情
【題組】36. The "white chalk cliffs of Dover" are mentioned in line 14 of the passage to
(A) show where the plankton sediment first began to build up
(B) provide an example of a plankton buildup that scientists cannot explain
(C) provide an example of the buildup of plankton sediment
(D) indicate the largest single plankton buildup on Earth
參考答案
答案：C
難度：適中0.666667
統計：A(0),B(1),C(2),D(0),E(0)