全成本报表平台主要有下面（）功能
A.复核
B.报表展示
C.综合查询
D.报表发布
参考答案：A, B, C, D
含有SiO2的黄铁矿（FeS2）试样1克，在O2中充分灼烧后残余固体为0.76克，则该黄铁矿的纯度为________%；用这种黄铁矿100吨可制得98%的浓硫酸多少吨？（设工业生产中有2%的硫损失）
Premier Wen Jiabao said that if we worked hard and____ optimistic,we were_____ win the war against the finanical crisis.
A．were; bounding
B．were; bound to
C．was; bounding to
D．had; bounded to
