50. What does malware do?
(A) It takes your secret information and prevents it from being seen.
(B) It makes your computers run faster.
(C) It lets others see what you do on your electronic devices.
(D) It creates pollution in your household.

答案：登入後查看
統計： A(3), B(0), C(1), D(0), E(0) #2994344