問題詳情

18. Ensuring food safety is one of those federal government ________ we only notice when it fails.
(A)functional
(B)function
(C) functioned
(D)functions

參考答案

答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

內容推薦

內容推薦