2. 职称英语
  3. What does the passage mainly discuss? [br] The passage suggests that the speed

What does the passage mainly discuss? [br] The passage suggests that the speed

游客2024-01-05  44
问题  What does the passage mainly discuss? [br]  The passage suggests that the speed at which communication through pheromones occurs is dependent on how quickly they
选项 A、lose their effectiveness
B、evaporate in the air
C、travel through the air
D、are produced by the body
答案 C
解析
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