, . . 16.
, , , , , .
1 2.
17,18.
, , , ( 12 Power Point). , , . 4 .
4. , .
. 19, 20.
1
-
-
( ʻ)
__ ___________ 20__ . ________________ .. |
:
: 230115
_______________ | .. |
_______________ | .. |
_______________ | .. |
2131 | _______________ | .. |
-
20 _ .
2
-
|
|
-
( ʻ)
__ ___________ 20__ . ________________ .. |
:
: 080114 ( )
_______________ | .. |
_______________ | .. |
2121 | _______________ | .. |
-
20 _ .
3
()
-
-
( ʻ)