Don't eat the noodles___________ your hands. Here you are. The chopsticks.
A:about
B:for
C:of
D:with
如图,已知矩形OABC中,OA=2,AB=4,双曲线y=kx(k>0)与矩形两边AB、BC分别交于E、F.(1)若E是AB的中点,求F点的坐标;(2)若将△BEF沿直线EF对折,B点落在x轴上的D点,作EG⊥OC,垂足为G,请证明△EGD∽△DCF,并求出k的值.
动手画一画。
— . I've got everything ready.