krupa grocery

y^WORDYXxY.

2011 1 .

RMB CNY Y Y-YY="Y Y- Y= .

y=x y=x y=kx+bkbk0x yb=0.

Model Y110 Model Y3.

wpsyWPSyyshift+6y.

1. Y (YuanYen) 2.$ (Peso)PS $ 3. .

y,w yya),w (wa .

Model Y

y = tanx tanx y = tanx (k + /2) k x.