You lost the PRODSTD tablespace, which was read/write. The tablespace was readonly when the last backup was performed. How would you recover the tablespace?()
A. restore the tablespace from the backup; there is no need to apply the redo information
B. restore the full database to recover the data up to the point when you performed the backup
C. restore the tablespace from the backup, and then perform a recovery using the backup control file
D. restore the tablespace from the backup, and then recover the tablespace; all the redo information from the point when the tablespace was made read/write is applied
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一般保证的保证人与债权人未约定保证期间的,保证期间为之日起()。
A. 半年
B. 一年
C. 二年
D. 三年
苍岩山“三绝”包括()。
A. 天然回音壁
B. 桥楼殿
C. 白檀树
D. 冻凌玉柱
E. 古柏朝圣
均布载荷作用下,连续梁弯矩分部特点是()
A. 跨中正弯矩,支座负弯矩
B. 跨中正弯矩,支座零弯矩
C. 跨中负弯矩,支座正弯矩
D. 跨中负弯矩,支座零弯矩
简述众数、中位数和平均数作为测量中心趋势的指标所适用的数据类型。