阿摩線上測驗
28. Even though the abundance of information can be beneficial in several levels, some problems may be of _____ such as privacy, legal and ethical guidelines, filtering and data accuracy.
(A) concern
(B) content
(C) convention
(D) criticism
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統計： A(137), B(49), C(18), D(51), E(0) #2754282
統計： A(137), B(49), C(18), D(51), E(0) #2754282
