I decided to go to the library as soon as I ______.

A．finished what I was doing

B．finished what I did

C．would finish what I was doing

D．finish what I did

以多元化投资来有效降低非系统性风险为出发点，以数量化分析为其最大特点的证券投资方法是( )。

A．证券组合分析法

B．技术分析

C．行业分析和区域分析

D．基本分析