It's important to learn how the whole system works. Sometimes, ________， it's the details that interest us the most.

A．therefore

B．meanwhile

C．furthermore

D．though

下列属于资金成本构成的是（）。

A．借款利息、债券利息和手续费用

B．筹资费用和利息费用

C．资金占用成本和筹资费用 n利息费用和向所有者分配的利润