阿摩線上測驗
7. Without the carbon _____released from the process, all plant life would die out.
(A) peroxide
(B) monoxide
(C) dioxide
(D) oxidation
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統計： A(31), B(18), C(166), D(103), E(0) #3228951
統計： A(31), B(18), C(166), D(103), E(0) #3228951
