---Doctor , I’m getting ________. --- Well , you’d better eat ______food.

A．fat and fat; more

B．fatter and fatter ; fewer

C．more and more fatter ; less

D．fatter and fatter ; less

高速机械转子的精度，无论新旧转子，轴颈的（）误差都应尽量小，一般控制在0.02mm内。