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级差地租和绝对地租

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Consider the following scenario: You have a directory, data, under the disk group tdgroupA. You want to create an alias for one of the data files and you execute the following command: ALTER DISKGROUP tdgroupA ADD ALIAS ’+tdgroupA/data/datafile.dbf’ FOR ’+tdgroupA.231.45678’; Which task would be accomplished by the command?()

A. The command drops the file +tdgroupA·231.45678.
B. The command physically relocates the file to +tdgroupA/data and renames the file to datafile.dbf.
C. The command creates a copy of the +tdgroupA·231.45678 file and places it in +tdgroupA/data after renaming the file to datafile.dbf.
D. The command creates an alias, datafile.dbf, and places it in +tdgroupA/data and does not remove the +tdgroupA·231.45678 file.
E. The command creates a file, datafile.dbf, in +tdgroupA/data and removes the references for +tdgroupA·231.45678 from the data dictionary views.

Y,d11接线的变压器,二次侧线电压超前一次线电压()。

A. 330°;
B. 45°;
C. 60°;
D. 30°。

在同一时刻,物体中温度不同的等温面或等温线不能().

A. 平行
B. 相交
C. 重合
D. 在同一平面内

清代内阁公务的案例“积成样本四巨册”,官员“惟揣摹此样本为急”,时人称这为:“依样葫芦画不难,葫芦变化有千端。画成依旧葫芦样,要把葫芦仔细看。”这反映出当时()

A. 内阁职权下降导致官员无所事事
B. 政治体制僵化官员拘泥规制
C. 内阁机要事务繁忙官员穷于应付
D. 皇帝个人独裁官员惟命是从

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