阿摩線上測驗
17. The data, though incomplete, _____ sufficient to support a preliminary conclusion.
(A) is
(B) are
(C) being
(D) have
答案：登入後查看
統計： A(15), B(4), C(0), D(0), E(0) #3792850
統計： A(15), B(4), C(0), D(0), E(0) #3792850
