Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1.
•×
2.
â
3.
K
4.
‘¼
ƒŒƒxƒ‹3.
•ÏX
SDAL“‡‰pŒêŠwZ