Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. •×
2. –½
3. â
4. Žç

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ