阿摩線上測驗
7. Teams of scientists travel to the Arctic to study the _____ of the Northern Lights.
(A) version
(B) phenomenon
(C) reputation
(D) revolution
答案：登入後查看
統計： A(11), B(276), C(4), D(9), E(0) #908317
統計： A(11), B(276), C(4), D(9), E(0) #908317
