物业管理企业利润总额包括()。
A.补贴收入
B.营业利润
C.投资净收益
D.营业外收支净额
E.企业所属项目上交的酬金
参考答案:A, B, C, D
No sooner to bed than he fell asleep. [ ]
A. had he gone
B. he had gone
C. he went
D. did he go
如要将100g溶质质量分数为20%的硝酸钾溶液稀释成溶质质量分数为10%的硝酸钾溶液,需加入水的质量为( )
A.50g
B.90g
C.100g
D.200g