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                题目内容
                (河南财经政法大学大学英语(4))
            
            
                It may be safely ____ that there is no animal life on Mars.
A.assembled
B.assisted
C.assumed
D.assigned
                    
                    
                    
                
                
                
            
        A.assembled
B.assisted
C.assumed
D.assigned
参考答案
 
                