A:He likes it.
B:He's hard working.
C:He's a keeper.
“力排众难收新疆,忠心为国留史册”所称颂的英雄人物是( )
已知A,B,C三点共线,O是这条直线外的点,满足OA→+OC→=2OB→,则点A分BC→的比为( )