阿摩線上測驗
34.A person’s blood flows through a pipeline of vessels that, end to end, would stretch more than half times around the Earth at the equator.
(A)twice and
(B)twice a
(C)two and
(D)two and a
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統計： A(13), B(12), C(0), D(17), E(0) #2322874
統計： A(13), B(12), C(0), D(17), E(0) #2322874
