I suggested the theory _____ put into practice. [ ]A. referred to beingB. referred to is C. refer to

题目简介

I suggested the theory _____ put into practice. [ ]A. referred to beingB. referred to is C. refer to

题目详情

I suggested the theory _____ put into practice.    
[     ]
A. referred to being                              
B. referred to is    
C. refer to be                                    
D. referred to be
题型:单选题难度:中档来源:专项题

答案

D

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