阿摩線上測驗
9. Attracting users to social networking sites is all about building trust. However, the private and personal data has been misused or secretly collected without the owners' ______.
(A) certification
(B) permission
(C) guarantee
(D) authority
答案：登入後查看
統計： A(0), B(1), C(0), D(0), E(0) #3357155
統計： A(0), B(1), C(0), D(0), E(0) #3357155
