28. Which of the following are the only modern animals that may have descended directly from
dinosaurs?
(A) birds
(B) lizards
(C) snakes
(D) crocodiles
(E) mammals
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統計: A(37), B(3), C(0), D(6), E(1) #2308358
統計: A(37), B(3), C(0), D(6), E(1) #2308358