应该由谁保证生产经营单位的安全生产资金投入?()
A.个人经营的名义投资人
B.生产经营单位的管理层
C.生产经营单位的决策机构、主要负责人
D.生产经营单位的财务部门
参考答案:C
Maybe if I ________ science,and not literature then,I would be able to give you more help.(2011·北京)
A.studied
B.would study
C.had studied
D.was studying
简述资产负债表的意义和作用。