Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. ˆã
2. [
3. ’è
4. â

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ