阿摩線上測驗
13. In response to growing concerns about food safety, authorities have _____ enforce stricter standards governing the production and distribution of dairy products.
(A) taken to
(B) pledged to
(C) ushered to
(D) conditioned to
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統計： A(13), B(21), C(9), D(5), E(0) #3450029
統計： A(13), B(21), C(9), D(5), E(0) #3450029
