42. After a long research about the "warm-blooded"' animals (birds and mammals), the scientists found that they were not evolved from a common ancestor. Which animal group is most closely related to birds in the history of life?
(A)Turtles
(B) Saurischian dinosaurs
(C) Lizards
(D)Crocodile
(E)Snakes

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統計: A(0), B(23), C(0), D(1), E(0) #3085421

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