阿摩線上測驗
12. Hence, the Conferences of the Parties to the UN Framework Convention on Climate Change have set up the mechanism of _______ greenhouse gases emissions.
(A) reducing
(B) reduction
(C) to reduce
(D) reduce
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統計： A(87), B(7), C(3), D(0), E(0) #1219762
統計： A(87), B(7), C(3), D(0), E(0) #1219762
