[讨论]gwd28-3-6

deedeexoxo

28-3: The primary purpose of the passage is to discuss the

A: techniques used in certain experiments on social learning in birds

B: reasons for the differences between social learning in birds and in mammals

C: question of how social learning manifests itself in birds

D: basis for a widespread belief about a difference in behavior between birds and mammals

E: possible reasons why birds may or may not learn from each other in a particular way

我做这个有问题：为什么选C呢？哪里有question呢？请指导！：）