成本预算中,以下不是固定预算假设前提的是( )。
A.未来的收益是乐观的
B.原有的各项开支都是合理的
C.现有的业务活动是企业必需的
D.增加费用预算是值得的
参考答案:A
The schoolboy regretted _______ after he didn't pass his exam.
A.the time on TV
B.to spend so much time on TV
C.taking most of his time on TV
D.spending so much time on TV
储蓄倾向