Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
³‰ðI
slope =
1. —L
2. “™
3. â
4. ‹{

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ