Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. Ӭ
2. ’ë
3. ‘Ò
4. â

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ