阿摩線上測驗
31. New laws have been enacted by the legislature to reduce carbon dioxide ______ from
vehicles and factories.
(A)portraits
(B)applications
(C)emissions
(D)sensations
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統計： A(8), B(27), C(106), D(6), E(0) #2683356
統計： A(8), B(27), C(106), D(6), E(0) #2683356
