商业利润和银行利润的真正来源是( )。

题干

商业利润和银行利润的真正是( )。

A：商业销售人员和银行资本家创造的剩余价值

B：商品购销价格的差额、银行存贷款利息的差额

C：产业工人创造的剩余价值

D：商业职工、银行职工创造的剩余价值

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C

This Sunday is grandpa's birthday. The Smith family are going to celebrate it at home, so they will have a busy weekend.

Saturday
Morning	Dad-clean the car in the garden Mum-clean the kitchen and bedrooms of their house Amy-have dance lessons in the gym Rose--work on science projects in the library
Afternoon	Mum and Dad-buy some food at the supermarket Amy and Rose-choose gifts and cards for grandpa
Evening	Watch TV together
Sunday
Morning		Mum---make a big birthday cake Amy and Rose-wrap grandpa's gifts
Afternoon		Amy-help Mum cook delicious food Rose-help Dad decorate the sitting room
Evening		Amy and Rose-give gifts to grandpa The whole family-have a party

根据表格所提供信息，从每小题所给的A、B、C三个选项中，选出一个最佳答案。