注意：此页面搜索的是所有试题
题目内容
（河南理工大学—大学英语3）
单选题,10分] Online courses require students to make decisions ________ on facts as well as experience.
A.to base
B.basing
C.based
D.being based
A.to base
B.basing
C.based
D.being based
参考答案
