Page 43 - แบบทดสอบก่อนเรียน-เนื้อหา-แบบฝึกหัด-หน่วยที่-4_Neat
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1.18  0?8???)8?? 25  ????(???? 2553? ???4?? ???0?7? ??4,000  ????   
  
          
            
                
                
                
                
  1.19  0?8???)8?? 27  ????(???? 2553? ? ????9???   3,500 ? ??? ???0?(???????? 
1,000????0?(? ??500???? ???)80????? ?   
  
          
            
                
                
                
                
                
                
                
    
  1.20  0?8???)8?? 30  ????(???? 2553?????(????(??(?0??0?7? ??2 ,500  ????   
  
          
            
                
                
                
                
  

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