問題詳情
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
(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
參考答案
答案：B
難度：適中0.6
統計：A(1),B(3),C(1),D(0),E(0)
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