![](//s1.studylibfr.com/store/data-gzf/b2cf9246b366049249bd8cfdc4dd86b5/1/003980270.htmlex.zip/bg2.jpg)
0 " / ' /6',& "
./$
/
•7 2 " $"
2"2 2
• "2
2 " $"
2"2 2
abcd
bd
)%a6db6c
8 " 2 "
$" 29 "2
2
#$%:
; 2<=
6&++
!,6!,
"""2
+>!, "
"
: $
$
""$
#$&?
6/&6<
"'&6< " "2
<
)
0 1
" $" 2 !
3 4
"
abc
b
7 " $" -
$-