Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. •\
2. ŽM
3. ‘ã
4. â

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ