阿摩線上測驗
47. Which of the following items is NOT mentioned as a reason why penguins can rocket through the water?
(A) their swimming techniques
(B) their blood
(C) their mouths
(D) their wings
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統計： A(0), B(0), C(1), D(0), E(0) #3277729
統計： A(0), B(0), C(1), D(0), E(0) #3277729
