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标题: 四级练习2015.05.24 [打印本页]

作者: Rebecca949    时间: 2015-5-26 10:30     标题: 四级练习2015.05.24

[audio]http://sound.yywz123.com/tingbbs/cet4/cet420150524.mp3[/audio]



For thousands of years, people accepted challenges. (1)_____________________________. Medical science faces the challenges of conquering many diseases (2)________________________. Engineers and planners must build new cities and new kinds of transportation. (3)______________________________. And many of us are interested in the challenge of space. We actually live in an age of challenge.




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