A.8.33%
B.9.09%
C.10%
D.8.89%
A.8.33%
B.9.09%
C.10%
D.8.89%
A.轻质砖
B.耐火砖
C.水泥
D.砂石
A.1.5%
B.2.5%
C.1%
D.3%
A.2500块
B.2540块
C.2550块
D.2600块
A.标准制定法
B.经验估算法
C.类比法
D.历史数据法
A.1%
B.2%
C.3%
D.4%
A.40元/吨
B.41元/吨
C.42元/吨
D.41.38元/吨
A.4079元/吨
B.4084元/吨
C.4109元/吨
D.4120元/吨
A.5156元/t
B.5400元/t
C.5668元/t
D.6000元/t