試卷：無年度 - 2001年5月托福閱讀#20934
| 科目：TOEFL(Test of English as a Foreign Language)托福
試卷資訊
試卷名稱：無年度 - 2001年5月托福閱讀#20934
科目：TOEFL(Test of English as a Foreign Language)托福
46. According to the passage, the layers in varves are primarily formed by
(A) fossilized bacteria
(B) pieces of ancient dropstones
(C) a combination of ancient and recent sediments
(D) annual cycles of sediment transport and deposition
阿摩線上測驗
登入