37. What is special about the extinct frog in Smith’s book?
(A) It can live in a dirty living space.
(B)It might help fix a health problem.
(C)It eats its babies when it cannot find food.
(D) It is the first extinct animal that people studied.
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統計: A(51), B(280), C(72), D(82), E(0) #3239672
統計: A(51), B(280), C(72), D(82), E(0) #3239672