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A 50-meter run 7.8 seconds, 7.7 seconds to run 50 meters B, B Bijia run fast

DoudouのDream2010-01-28 22:01:53 +0000 #1
this sentence right, our class ran 5,000 meters in some people say not necessarily, but I fight for is right
435,257,7352010-01-28 22:08:40 +0000 #2
of course, was right! Because when the A and B two people with the same distance can only use time to measure. Who used who is certainly less time on the quick! Hurdler Liu Xiang is equivalent to the results when the ruling.呵呵
understand it?

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