关于可恢复的空间分配（resumable space allocation），哪两个陈述是正确的？（选择两个） 数据库级LOGON触发器可用于自动配置单个会话的可恢复语句设置。 用于排序区域的临时空间不足的SELECT语句是可恢复执行的候选对象。 Which two statements are true about resumable space allocation? (Choose two.) AB A. A database-level LOGON trigger can be used to automatically configure resumable statement settings for individual sessions. B. SELECT statements that run out of temporary space for sort areas are candidates for resumable execution. C. A resumable statement can be suspended and resumed only once during a session. D. Resumable space allocation does not apply when a database instance uses asynchronous commit. E. Resumable space allocation does not apply when users exceed their assigned space quota in a tablespace. F. Free space in a segment is automatically reclaimed when a resumable statement is suspended because of an out-of-space condition.