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           People have learned a lot fromstudies．
          A．scienceB．scientific
          C．scientistD．sightseeing
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析：句意：人們已經(jīng)從科學(xué)研究學(xué)到了很多。分析選項(xiàng)音標(biāo)與詞意：A. science['sa??ns] 科學(xué)；B. scientific[sa??n't?f?k]科學(xué)的；C. scientist ['sa??nt?st] 科學(xué)家；D. sightseeing['sa?tsi???]觀光。聯(lián)系句意為科學(xué)的研究，因此運(yùn)用形容詞形式。故選 B
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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