唔該！幫幫忙解答我以下2個問題唔該!

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唔係好明個問題同"答案"- w9 Z( b$ i+ V* a8 A* u

% j4 }* A. [  l' U* f; S7 B1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related+ v" O" b: k0 X! v! i% \. _& T1 a5 y
Aimee Teegarden: "Recent polls have shown a fifth of Americans can't locate the U.S. on a world map. Why do you think this is?"
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& L' C2 n  u6 }! G* SCaitlin Upton: "I personally believe that U.S. Americans are unable to do so because, uh, some, people out there in our nation don't have maps and, uh, I believe that our, uh, education like such as, uh, South Africa and, uh, the Iraq, everywhere like such as, and, I believe that they should, our education over here in the U.S. should help the U.S., uh, or, uh, should help South Africa and should help the Iraq and the filter-074 countries, so we will be able to build up our future, for our children."# H1 Y# i7 |! h( k8 v

' u# }/ U$ m' y% K/ w2. http://nz.youtube.com/watch?v=itjlj6i9XFo
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/ K6 ~3 {. W7 GQ:"How many feet are in 2 1/2 yards?
) N# G+ e! ?+ M. {. e5 `A:"78"
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?