Imperfect goods are ________ by our quality control center in case they come into the consuming of the

customers.[ ]

A．rejected  

B．accepted

C．realized  

D．followed

右转螺旋桨飞机，螺旋桨反作用力矩力图使飞机（）.

A.向左滚转

B.向右滚转

C.视油门大小而不同