阿摩線上測驗
29. To _________ information security, please change your passwords on a regular basis and avoid
posting too much personal information online.
(A) remove
(B) ensure
(C) undermine
(D) diminish。
答案：登入後查看
統計： A(5), B(138), C(5), D(3), E(0) #3270065
統計： A(5), B(138), C(5), D(3), E(0) #3270065
