施工企业的成本核算对象应在( )确定,一经确定不得随意变更。
A.工程投标前
B.工程开工前
C.工程开工后
D.工程结束后
参考答案:B
The plan ________. Which of the following is WRONG?[ ]
A. deserves a discussion
B. is worth discussing
C. deserves being discussed
D. deserves to be discussed
根据产品质量将其分为1级品、2级品和3级品,此数据是()。
A.实验数据
B.分类数据
C.顺序数据
D.定量数据