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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1171

  In this experiment, the famous professor showed three different ________ to the study of physics.(2012·河北保定中学月考)

A.methods B.ways
C.approaches D.means
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Inthisexperiment,thefamousprof