阿摩線上測驗
12. The new procurement system is more ______ and easier to use than the old one.
(A) active
(B) plain
(C) convenient
(D) lost
答案：登入後查看
統計： A(1), B(0), C(26), D(1), E(0) #3887959
統計： A(1), B(0), C(26), D(1), E(0) #3887959
