Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. ˜a
2. ‘z
3. â
4. —û

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ