阿摩線上測驗
14. When they face the possibility of chasing the armed criminals, the police usually will wear _____ vests
under their uniforms.
(A) water-proof
(B) fire-proof
(C) dust-proof
(D) bullet-proof
答案：登入後查看
統計： A(70), B(133), C(112), D(1422), E(0) #3021382
統計： A(70), B(133), C(112), D(1422), E(0) #3021382
