Human facial expressions differ from those of animals in the degree ______ they can be controlled on

题目简介

Human facial expressions differ from those of animals in the degree ______ they can be controlled on

题目详情

Human facial expressions differ from those of animals in the degree ______ they can be controlled on
purpose.  
[     ]
A. with which    
B. to which      
C. of which    
D. for which
题型:单选题难度:中档来源:上海市期末题

答案

B

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