阿摩線上測驗
39. According the passage, what does the word cascade in the fourth paragraph mean?
(A) To approach like a flash
(B) To connect in a series
(C) To transform as a whole
(D) To weaken little by little
答案：登入後查看
統計： A(17), B(234), C(15), D(16), E(0) #2757018
統計： A(17), B(234), C(15), D(16), E(0) #2757018
