阿摩線上測驗
6 National-security agencies invest hundreds of millions of dollars yearly in software to _______ hackers and cybercriminals from invading our profiles.
(A) deter
(B) alter
(C) gather
(D) whisper
答案：登入後查看
統計： A(38), B(10), C(4), D(9), E(0) #3462155
統計： A(38), B(10), C(4), D(9), E(0) #3462155
