阿摩線上測驗
10. The best way to pass a safety inspection is to __________ safety standards at all times.
(A) keep
(B) maintain
(C) approve
(D) remind
答案：登入後查看
統計： A(5), B(3), C(0), D(0), E(0) #3860207
統計： A(5), B(3), C(0), D(0), E(0) #3860207
