题目内容

长大笨重货物是指单件（不能分拆的）长度在（）或重量在4～20吨的货物。

A. 3～6米
B. 6～14米
C. 14～20米
D. 20米以上

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The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. Which statement is true while performing a tape backup in an RMAN session?（）

A. The tape I/O performed is asynchronous
B. The tape buffer is allocated from the System Global Area (SGA)
C. The tape buffer is allocated from the Program Global Area (PGA)
D. Oracle I/O uses an interrupt mechanism to determine when each I/O complete

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