下册Computers高一英语课件
日期：2010-08-06 08:45
A toy?A handbag?Riddles(谜语):I am very old now I was born in China Many people used me for calculating in the past， but now I am a bit lonely because they don’t like me now
Do you know who I am?abacusRiddles(谜语):I am very smallI can be used for calculating In China， a lot of students use me w，
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