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                题目内容
                (石家庄铁道大学大学英语1)
            
            
                If the pressure is not ________ immediately, there may be an explosion.
 
A、 revealed
 
B、 released
 
C、 resolved
 
D、 relieved
                    
                    
                    
                
                
                
            
        A、 revealed
B、 released
C、 resolved
D、 relieved
参考答案