唔該！幫幫忙解答我以下2個問題唔該!

xylitol25

唔係好明個問題同"答案"' G2 j/ M) c& r6 S' c! f+ y

$ i  \' E* {9 l5 o1. http://nz.youtube.com/watch?v=lj3iNxZ8Dww&feature=related
! f. L( Y- I, I9 c1 [. b& A+ kAimee 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?"
$ q. ~5 D" F' U5 u* L* |( V+ \! A; \* C. T2 c

, Y; G% B6 S$ x  A7 ?/ [" ~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."; J  q9 ]4 o* b0 C0 q

7 ~9 L1 A% u- E  B8 a  r1 R1 P2. http://nz.youtube.com/watch?v=itjlj6i9XFo
: ], }% P) z2 w( A
: d% ]7 H# w2 l: k9 D9 j( mQ:"How many feet are in 2 1/2 yards?
/ R8 Y1 N' n2 l$ y0 t3 CA:"78"/ r- y# ?0 Z) t8 ^! q! g: O4 C

9 d7 c  B! i, W  wWHY NOT IS 7.5? I THINK IS 3 FEETS EQUAL 1 YARD?