阿摩線上測驗
49. What does the phrase on command (in the last paragraph) most likely mean?
(A) having self-control
(B) predicting people’s needs
(C) doing things skillfully
(D) following instructions
答案：登入後查看
統計： A(72), B(85), C(40), D(262), E(0) #3100686
統計： A(72), B(85), C(40), D(262), E(0) #3100686
