At one point, when someone handed him a statement that had come in earlier from the Iranian Embassy, answering several questions he'd been pursuing, he exploded. . . .
期间，还有人递给他从伊朗大使馆提前得到的发言稿，回答他所追寻的一些问题，他爆怒了......
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Answering these questions generates the query's access path; your tuning aim is to get a better path that will reduce statement execution time.