阿摩線上測驗
39 Which of the following is mentioned by the author as a reason why the baleen whale population has been
reduced?
(A) disease
(B) hunting
(C) insufficient supply of food
(D) increased pollution of the seas
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統計： A(3), B(135), C(15), D(16), E(0) #3118652
統計： A(3), B(135), C(15), D(16), E(0) #3118652
