阿摩線上測驗
45. What was the first piece of man-made space trash?
(A) A camera.
(B) A tool kit.
(C) A fuel tank.
(D) A broken satellite.
答案：登入後查看
統計： A(21), B(22), C(19), D(118), E(0) #490909
統計： A(21), B(22), C(19), D(118), E(0) #490909
