阿摩線上測驗
46 The main responsibility of a traffic officer is to ________ road safety laws, such as speed limits, to prevent accidents.
(A) enforce
(B) endure
(C) encourage
(D) enlarge
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統計： A(14), B(1), C(0), D(0), E(0) #3930131
統計： A(14), B(1), C(0), D(0), E(0) #3930131
