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                题目内容
                (河南财经政法大学大学英语(4))
            
            
                This question is very ______to answer for us.
A.convenient
B.formal
C.difficult
D.formidable
E.unformed
                    
                    
                    
                
                
                
            
        A.convenient
B.formal
C.difficult
D.formidable
E.unformed
参考答案
 
                