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单选

What does the author tell us in this passage? 查看材料

  • A.How trees help prevent droughts and floods.
  • B.The relationship between trees and man.
  • C.How an empire fell to pieces in ancient times.
  • D.A story of trees.
试题出自试卷《2015年成人高考学士学位英语最后冲刺试题(1)》
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