combined crossbred purebred selection

• 组合选择

combined crossbred purebred selection的用法和样例：

例句

1. We state Markowitz's risk diversification and it's significance.Then, we explain how Markowitz used his theory to present portfolio selection theory.
   首先论述了马科维茨的风险分散化理论及其方法论意义，接着说明了马科维茨运用风险分散化思想而提出的资产组合选择理论及其启示。