阿摩線上測驗
129. Despite the fiercely competitive market, our brand has managed to ______ its reputation for high-quality customer service.
(A) contain
(B) reserve
(C) detain
(D) retain
答案：登入後查看
統計： A(46), B(63), C(13), D(123), E(0) #3805317
統計： A(46), B(63), C(13), D(123), E(0) #3805317
