河南成教 / 大学英语4
正确率：100%
6[单选题]
Online courses require students to make decisions _ _ _ _ _ _ _ _ on facts as well as experience.
A.to base
B.basing
C.based
D.being based
Online courses require students to make decisions _ _ _ _ _ _ _ _ on facts as well as experience.
参考答案：
佳题速递：