阿摩線上測驗
20. Always visit and download files from _______ websites. So you won’t be bothered by fake news and virus.
(A) casual
(B) fluent
(C) humble
(D) secure
答案：登入後查看
統計： A(25), B(51), C(20), D(419), E(0) #2556026
統計： A(25), B(51), C(20), D(419), E(0) #2556026
