問題詳情

31. ______ mobile payments have many benefits, the public are still concerned about security issues. (本題為複選題)
(A)Although
(B) In spite of
(C) Even though
(D)By means of

參考答案

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