销售量预算的准确性对保证财务预测的质量至关重要。
参考答案:对
.Life is too short to waste and too ________ to give up.
A.expensive
B.fragile
C.precious
D.ordinary
适合做车刀材料的是①碳素结构钢②碳素工具钢③合金工具钢④硬质合金()
A、①②
B、②③
C、②④
D、③④