阿摩線上測驗
6. 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(33), B(19), C(605), D(10), E(0) #3887959
統計： A(33), B(19), C(605), D(10), E(0) #3887959
