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				6．Quantities of water        for cooling in the only one of the plants that        steel.  A．has been needed,produces  B．a(chǎn)re needed,produces  C．is needed,produce  D．have been needed,produce			【查看更多】
			


		
           
          


		
          
		
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          Quantities of water________for cooling in the only one of the plants that________steel. 
          

           [     ]
          A. has been needed;produces
          B. are needed; produces
          C. is needed;produce
          D. have been needed;produce
          

			
          
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          Quantities of water________for cooling in the only one of the plants that________steel. 
          

          [     ]
          A. has been needed; produces
          B. are needed; produces
          C. is needed; produce
          D. have been needed; produce
          

			
          
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          Quantities of water________for cooling in the only one of the plants that________steel. 
          

          [     ]
          A. has been needed; produces
          B. are needed; produces
          C. is needed; produce
          D. have been needed; produce
          

			
          
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          Large  quantities of water ________ for cooling purpose in the only one of the plants  that ________ steel in the city.
              
          A．has been needed; produce
              
          B．a(chǎn)re needed; produces
              
          C．is needed; produces
              
          D．have been needed；produce
              
          

			
          
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