No one will score a perfect 10
1. What medical aid did René Laennec invent in 1816?
      
       
     Stethoscope 
 
 
       
     Plaster cast 
 
 
       
     Elastoplast 
 
 
       
     France's 
 
 
    
 
     Stethoscope 
 
 
       
     Plaster cast 
 
 
       
     Elastoplast 
 
 
       
     France's