問題詳情

【題組】51. What is the second paragraph mainly about?
(A) The impact of MOOCs.
(B) The goal of MOOCs.
(C) The size of MOOC classes.
(D) The cost of MOOC courses.

參考答案

答案：A
難度：適中0.477477
統計：A(53),B(18),C(21),D(13),E(0)