阿摩線上測驗
21. What is the purpose of this passage?
(A) To introduce a new online security tool
(B) To educate people about Internet safety
(C) To advertise a password management service
(D) To encourage people to reduce screen time
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統計： A(0), B(2), C(1), D(0), E(0) #3556423
統計： A(0), B(2), C(1), D(0), E(0) #3556423
