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"( x/ M3 a0 a5 o5 H. T* ~* {; V
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1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related9 }1 M2 g' N9 x/ [" V1 W' Y' j6 t% ^( ~
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?"8 z) A( `) e, W! b& X6 n& W

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Caitlin 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."& |/ U) @4 M9 ]: X( U/ V9 f9 {
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2. http://nz.youtube.com/watch?v=itjlj6i9XFo) P3 C% K! y) d- v. S

4 X+ ?( v' w2 q# w, y6 v, P, TQ:"How many feet are in 2 1/2 yards?/ w5 s/ Z; m! K+ c, W
A:"78"+ b, D7 `% X( l2 a7 r
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WHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?