quEstions 4 to 7 ArE BAsED on thE Following ConvErsAtion.At thE EnD oF thE ConvErsAtion, you will BE givEn 20 sEConDs to AnswEr thE quEstions.
now listEn to thE ConvErsAtion.
whAt wAs thE origin oF thE trADitionAl imAgE oF roBotA．wElDing CAr.
B．ComputEr.
C．mAChinE.
D．sCiEnCE FiCtion.