阿摩線上測驗
45 Surveillance camera databases are becoming tools for the police to solve criminal problems.
(A)useless
(B)crucial
(C) disturbing
(D) controversial
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統計： A(6), B(199), C(15), D(37), E(0) #2017827
統計： A(6), B(199), C(15), D(37), E(0) #2017827
