阿摩線上測驗
49. The passage is mainly about___________ .
(A) the effect Facebook has on teenagers
(B) Facebook’s new app designed for children
(C) what parents can do to protect kids from Facebook
(D) parents who want children under the age of 13 to use Facebook
答案：登入後查看
統計： A(56), B(250), C(32), D(27), E(0) #1784701
統計： A(56), B(250), C(32), D(27), E(0) #1784701
