高二英语Unit18inventionspeaking(含ppt,音频文件)课件
日期：2010-08-01 08:23
carrying 4-5 passengers
An electronic device which can accept，Compass
Paper
Printing
Gunpowder
Quiz:
The digital equipment to take photos of other objects
A 4-wheeled motor vehicle， store， powered
by an engine， process and output information，
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