Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. ŒN
2. ‰›
3. â
4. —Î

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ