听力题:Q:Which invention does the man think changed the world most?
听力题:Q:Which invention does the man think changed the world most?
A.The car
B.The light bulb
C.The computer
D.The phone
正确答案:The light bulb
听力题:Q:Which invention does the man think changed the world most?
A.The car
B.The light bulb
C.The computer
D.The phone
正确答案:The light bulb
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