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