試題詳解

試卷：無年度 - 2003年10月托福閱讀#20898 | 科目：TOEFL(Test of English as a Foreign Language)托福

試卷資訊

試卷名稱：無年度 - 2003年10月托福閱讀#20898

科目：TOEFL(Test of English as a Foreign Language)托福

29. According to the passage, the highest amount of pheromone vapor is found
(A) in the receptors of the ants
(B) just above the trail
(C) in the source of food
(D) under the soil along the trail

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