stock investment portfolio的用法和样例：
例句
- All three types of risks are relevant for deciding what assets to include in a portfolio,and what debts to have outstanding.
这三种风险都与确定证券投资组合里包括什么资产和什么债务有待偿还有关。 - The optimization model of multi-product inventory with chance constrained attributes based on behavioral portfolio theory is established, which are solved as well.
结合行为证券投资组合理论建立了一种具有机会约束属性的多产品库存优化模型，并给出了其求解算法。
