阿摩線上測驗
27 The building had recently been inspected, but it seemed that the _______system was not working when the fire
broke out.
(A) immune
(B) circulatory
(C) sprinkler
(D) navigation
答案：登入後查看
統計： A(47), B(64), C(252), D(40), E(0) #2940316
統計： A(47), B(64), C(252), D(40), E(0) #2940316
