Question: 北证50最新交易日最高价
Answer: 必答点：北证50指数最新交易日的最高价
精度要求：仅允许四舍五入误差
Time: 2025/8/14
Real-time data: {"899050___BJ":{"RT_TIME":"150014","RT_DATE":"20250814","RT_HIGH":"1463.549"}}