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                题目内容
                (河南大学-大学英语(一))
            
            
                [单选题,3.3分] I am not very good _____ maths. Would you please work out the total cost of our trip?
A.in
B.for
C.on
D.at
                    
                    
                    
                
                
                
            
        A.in
B.for
C.on
D.at
参考答案