单项选择题
A.20.01 B.20.00 C.19.98 D.19.97
测定煤样挥发分时应称取样品()A.1±0.1gB.1±0.01gC.1±0.001g
单项选择题测定煤样挥发分时应称取样品()
A.1±0.1g B.1±0.01g C.1±0.001g
测定煤样水分时应称取样品()A.1±0.1gB.1±0.01gC.1±0.001g
单项选择题测定煤样水分时应称取样品()
造气入炉煤≤10mm粒度的控制指标是()A.≤1.0%B.≤0.8%C.≤0.5%D.≤0.6%
单项选择题造气入炉煤≤10mm粒度的控制指标是()
A.≤1.0% B.≤0.8% C.≤0.5% D.≤0.6%