OG3 阅读 Q46

Choice C is the best answer. In (lines 31-35"In... proper"), the authors provide evidence that beekeepers' use of commercially produced insecticides may cause fur-ther harm to "immunocompromised or nutritionally deficient bees."
Choices A, B, and D are incorrect because they do not provide the best evi-dence that beekeepers' use of commercially produced insecticides may be harmful to bees; choices A, B, and D focus on mite infestations' impact on honeybees.