2006年湖北省高二英语下学期Unit11Scientificachievement[整理五套]课件
日期：2010-01-28 01:43
Unit 11
achievements
Integrating Skills
Red hot
???? What do you know are the four great inventions in China’s history?
powder
compass
making paper
printing
Fast Reading
What plan has helped Chinese scientists make many breakthroughs?，
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