—Hi, Mr. Smith. Which department do you work in?

—I am in the Marketing Department now, but I ________ in the Sales Department before long.

A．worked

B．will work

C．have worked

D．will have worked

将企业投资区分为固定资产投资、流动资金投资、期货与期权投资等类型所依据的分类标志是( )。

A．投入行为的介入程度，

B．投入的领域

C．投资的方向

D．投资的内容