D
base on 基于,依靠
本句which语句修饰宾语,on提前
教授发现很难找到支持这个新学说的论据.
解析一道四级英语选择题（不定项）
解析一道四级英语选择题（不定项）
The professor could hardly find sufficient grounds __his arguments in favor of the new theory.
A.to be based on B.to base on
C.which to base on D.on which to base
The professor could hardly find sufficient grounds __his arguments in favor of the new theory.
A.to be based on B.to base on
C.which to base on D.on which to base
其他人气：927 ℃时间：2020-03-28 04:05:56
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