Ngày tải lên :
20/09/2013, 00:10
... g$12%$,-,&apos ;5 ;U2J3;I^,-%+2Y$,5T2l>$5Qg$
12,< ;5$ > $5 G5VX,-E&apos ;5 $5/ ;,&apos ;5 2>N2#]OD,-Ieš$I^,-Q-DH
$P$$%$,-D;
A.
S
n
Z
Q ... 91:g$j2,X"%$,-,&apos ;5 ;%+2Y$,T2la2#B•./> $5/ a
UI^,-;2J3QN2#]dIeP$).Y"2#U $5 U2>,-Q42#eG,$
< ;5$ $5/ $j2,X"5VX,-E&apos ;5 $5 ;,&apos ;5 O,-DaP$D,-Ie"-2š$I^,-QgH5
$P$$%$,-;VO2XD;2#N; $5 ,dVA. ... 80._-2j2,X",$%$,-a2#!
Z x c t cm
π
=
Q]23,-2 #5 I!P$j2
,X" $5 L 5 G!2]2†GIW2,J5%$,-;23,-2 #5 I! $5 &apos ;5 5 Gb%$,-
A./" ; B."...