A:①②③
B:①②④
C:①③④
D:①②③④
如图所示,物块P置于水平转盘上随转盘一起运动,图中c方向沿半径指向圆心,a方向与c方向垂直.当转盘逆时针转动时,下列说法正确的是( )
He asked me ____ (another/other) question instead of answering me.