阿摩線上測驗
1. They produce artificial chemicals which exactly ______ particular natural ones.
(A) differ
(B) imitate
(C) disregard
(D) reverse
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統計： A(2), B(2), C(1), D(0), E(0) #3384740
統計： A(2), B(2), C(1), D(0), E(0) #3384740
