阿摩線上測驗
21. According to environmental scientists, the Earth is likely to experience significant ______ changes within the
next century. If we do not do something to protect the environment, we might suffer from the changes.
(A) provincial
(B) authentic
(C) ecological
(D)incentive
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統計： A(17), B(21), C(154), D(31), E(0) #2546256
統計： A(17), B(21), C(154), D(31), E(0) #2546256