問題詳情
【題組】25. The author mentions the trail pheromone of the leafcutter ant in line 11 to point out
(A) how little pheromone is needed to mark a trail
(B) the different types of pheromones ants can produce
(C) a type of ant that is common in many parts of the world
(D) that certain ants can produce up to one milligram of pheromone
參考答案
答案：A
難度：困難0.333333
統計：A(1),B(1),C(0),D(1),E(0)