10.
(2020七下·淮陽(yáng)期末)
如圖所示,已知△ABC與△CDA關(guān)于點(diǎn)O對(duì)稱(chēng),過(guò)O作EF分別交AD,BC于點(diǎn)E,F(xiàn),下面的結(jié)論:①點(diǎn)E和點(diǎn)F,點(diǎn)B和點(diǎn)D是關(guān)于點(diǎn)O的對(duì)應(yīng)點(diǎn);②直線BD必經(jīng)過(guò)點(diǎn)O;③四邊形ABCD是中心對(duì)稱(chēng)圖形;④四邊形DEOC與四邊形BFOA的面積必相等;⑤△AOE與△COF成中心對(duì)稱(chēng),其中正確的有( )
A . 1個(gè)
B . 2個(gè)
C . 3個(gè)
D . 5個(gè)