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pheromones 那篇, 第9问.支持.C present some of the issues involved in the debate over what constitutes a pheromone 文中先提出Some of the issues:1. some researchers also specify that the response to pheromones must be unconscious 2. some researchers classify pheromones as a type of odorant 然后 给出Evidence that pheromone responses may not involve conscious odor perception comes from the finding that in many species 阐述issues1.没再提2。 |