当年的巴格达（Baghdad）和巴士拉（Basra），在两个帝国之间以此拉锯，今天依然是伊朗和沙特争夺影响力的最前线。
These times might sometimes differ substantially - it is because for some test cases, there is a need to fetch existing data from DB in order to construct test queries. Duration of these additional queries is subtracted from the total test duration: Queries duration = Total test duration - Additional queries duration. Otherwise they would skew results, adding time where it should not be counted.
，这一点在新收录的资料中也有详细论述
or via your device.，这一点在新收录的资料中也有详细论述
Ema Sabljak,England Data Unitand，推荐阅读新收录的资料获取更多信息
Presenter: Chris Vallance