試卷：無年度 - 2003年8月托福閱讀#20899
| 科目：TOEFL(Test of English as a Foreign Language)托福
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試卷名稱：無年度 - 2003年8月托福閱讀#20899
科目：TOEFL(Test of English as a Foreign Language)托福
26 How did glacial meltdown affect the soil in North America?
(A) It redistributed the soil types
(B) It added salt to the soil
(C) It made the soil more neutral in content
(D) It added minerals to the soil
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