阿摩線上測驗
29 Rescue teams often rely on _____ dogs trained to detect human scent under debris.
(A) domestic
(B) vibrant
(C) high and low
(D) search and rescue
答案：登入後查看
統計： A(20), B(6), C(18), D(74), E(0) #3461798
統計： A(20), B(6), C(18), D(74), E(0) #3461798
