which of the following statements is correct? A. An adverse direct material cost variance will always be a combination of an adverse material price variance and an adverse material usage variance B. An adverse direct material cost variance will always be a combination of an adverse material price variance and an favourable material usage variance C. An adverse direct material cost variance will always be a combination of an favourable material price variance and an favourable material usage variance D. An adverse direct material cost variance will always be a combination of an favourable material price variance and an adverse material usage variance 答案说是D. 可是我觉得是A. 不是 dirct material cost variace=meaterial price variace + material usage variace么?那当然是A不管怎么样都是对的亚 请教大家!!非常感谢! |