阿摩線上測驗
1. The opening of the App Store was a _____, turning handsets from simply being phones into the handheld computers.
(A) millstone
(B) institute
(C) immersive
(D) milestone
答案：登入後查看
統計： A(5), B(4), C(1), D(14), E(0) #2327154
統計： A(5), B(4), C(1), D(14), E(0) #2327154
