38. Which of the following statements is TRUE?
(A) Dogs historically ate only meat.
(B) It’s unusual that dogs eat grass.
(C) Dog’s ancestors did not eat herbivores.
(D) Wild dogs never ate vegetation.
(E) Domesticated dogs eat only grass.
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統計: A(29), B(18), C(7), D(1), E(2) #2069477
統計: A(29), B(18), C(7), D(1), E(2) #2069477