阿摩線上測驗
22. Where do the northern and southern lights occur?
(A) In outer space.
(B) In the earth’s magnetic field.
(C) Under the clouds.
(D) In the atmosphere.
答案：登入後查看
統計： A(2), B(23), C(1), D(109), E(0) #923650
統計： A(2), B(23), C(1), D(109), E(0) #923650
