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                题目内容
                (甘肃开放大学 英语阅读1)
            
            
                There is no sure-fire way to guard against affluenza.
A.
certain to succeed
B.
specific
C.
definite
D.
effective
                
                    
                    
                    
                
                
                
            
        A.
certain to succeed
B.
specific
C.
definite
D.
effective
参考答案