.

— I have learned that it is not easy to get on well with the new boss.

—______? I think that I only need to do my own job well.

A．So what

B．what for

C．what if

D．how come

高某以牟利为目的，非法从事外汇现金交易，交易金额上亿，其行为构成：（）

A.非法经营罪

B.非国家工作人员受贿罪

C.不构成犯罪

D.公司、企业人员受贿罪