Question: 贵州银行最近一个交易日的开盘价
Answer: 必答点：贵州银行的最新开盘价
精度要求：仅允许四舍五入误差
Date: 2025/8/14
Reference data: {"6199___HK":{"RT_TIME":"160809","RT_OPEN":"1.1400000000000001","RT_DATE":"20250814"}}