Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
know =
1.
‰æ
2.
’m
3.
S
4.
’·
ƒŒƒxƒ‹2.
•ÏX
SDAL“‡‰pŒêŠwZ