阿摩線上測驗
50. How do dimples on a golf ball affect its performance?
(A) They help it travel farther.
(B) They keep it in a better shape.
(C) They enhance its drag force.
(D) They allow it to endure stronger impact.
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統計： A(131), B(16), C(26), D(15), E(0) #2746485
統計： A(131), B(16), C(26), D(15), E(0) #2746485
