—I seldom agree with my manager's words.
—In order to succeed here, you should overcome your ________ against your manager( )
A:preference
B:comprehension
C:appeal
D:prejudice
如图,Rt△ABC中,∠C=90°,AC=6,BC=8,AD平分∠BAC,则点B到AD的距离是( )
下列各式中,代数式的个数为( )
①b;②13;③x>5;④1x+2.