阿摩線上測驗
40. What does “free-ranging” birds mean?
(A)Birds are not logged with tagged sensors by the researchers.
(B)Birds can fly most of time without a single flap.
(C)Birds are not reared by humans.
(D)Birds can fly in different altitude of the sky.
答案：登入後查看
統計： A(10), B(18), C(15), D(23), E(0) #3262766
統計： A(10), B(18), C(15), D(23), E(0) #3262766
