問題詳情

4.As energy sources, petroleum and coal are not_____________meaning that once they areused up, they are gone.
(A)renewable
(B)universal
(C)disposable
(D)replaceable

參考答案

答案:[無官方正解]
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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