Question: 北方华创最近一个交易日的开盘价
Answer: 必答点：北方华创的最新开盘价
精度要求：仅允许四舍五入误差
Date: 2025/8/14
Reference data: {"002371___SZ":{"RT_TIME":"150000","RT_OPEN":"332.36","RT_DATE":"20250814"}}