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小 发表于 2009-1-18 20:01 只看该作者
现在飞机的出事故率是300万分之一,那么连续四次事故的可能性1/8.1*10^25
我有那么好运吗？
Oh, say can you see by the dawn's early light
What so proudly we hailed at the twilight's last gleaming?
Whose broad stripes and bright stars thru the perilous fight,
O'er the ramparts we watched were so gallantly streaming?
And the rocket's red glare, the bombs bursting in air,
Gave proof thru the night that our flag was still there.
Oh, say does that star-spangled banner yet wave
O'er the land of the free and the home of the brave?
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