题目内容

理想流体在同一水平流管内稳定流动时,有截面大的地方()

A. 流速小、压力大
B. 流速大、压力小
C. 流速小、压力小
D. 流速大、压力大

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控制乡村人口数量,提高其素质

In your Oracle 10g database , you have scheduled a job to update the optimizer statistics at 05:00 pm every Friday. The job has successfully completed. Which three pieces of information would you check to confirm that the statistics have been collected?()

A. average row size
B. last analyzed date
C. size of table in bytes
D. size of table in database blocks
E. number of free blocks in the free list
F. number of extents present in the table

结合史实分唐前期出现社会经济繁荣的原因,并指出从中得到的启示。

继往开来,在屈原之后创造了古代积极浪漫主义的又一高峰,形成了我国文学史上源远流长的浪漫主义传统的诗人是()

A. 李贺
B. 李商隐
C. 韩愈
D. 李白

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