影响高炉寿命的因素有筑炉材质,冷却设备和冷却制度、操作制度和()。
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花的鲜艳色彩从何而来?秋天树叶为什么会变黄?土豆见光为什么会变绿?
船舶装载重大件货物,在核算系固方案时,其基本纵向加速度与()有关。
A. 横向积载位置
B. 纵向积载位置
C. 垂向积载位置
D. B和C
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
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