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
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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