成本控制方法中的表格法的优点是()。
A.灵活
B.适用性强
C.信息量小
D.能准确表达绝对偏差
E.可借助计算机处理数据
参考答案:A, B, E
You _____ eat too many desserts. I strongly urge you to change your diet. [ ]
A. wouldn't
B. couldn't
C. shouldn't
D. needn't
因为小张不愿意帮忙,所以就请了别人。