Question: 沪深300最新交易日最低价
Answer: 必答点：沪深300指数最新交易日的最低价
精度要求：仅允许四舍五入误差
Time: 2025/8/14
Real-time data: {"000300___SH":{"RT_TIME":"150009","RT_DATE":"20250814","RT_LOW":"4165.9400000000005"}}