1. To provide the public a strong _______ to conserve energy, some officials purpose that the government should consider offering power saving rewards.
(A) aptitude
(B) alternative
(C) compensation
(D) incentive
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統計: A(19), B(30), C(27), D(70), E(0) #2689167
統計: A(19), B(30), C(27), D(70), E(0) #2689167