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