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                题目内容
                (石家庄铁道大学大学英语1)
            
            
                Whether you learn or not is entirely______you.
A、 up to
B、 as to
C、 about to
D、 due to
                    
                    
                    
                
                
                
            
        A、 up to
B、 as to
C、 about to
D、 due to
参考答案