[单选]
Users complain SQL statements using a particular index fail. Using DBVERIFY， you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large.
What is the least disruptive recover strategy available in Oracle9i？（）

A . Rebuild the index using the online option.
B . Take the individual data file offline (not the whole tablespace), restore and recover the data file from backup with RMAN, then set the data file online again.
C . Without setting the individual data file offline, use RMAN with Block Media Recovery to restore and recover only those blocks.
D . Take the individual data file (not the whole tablespace) offline, use RMAN with Block Media Recovery to restore and recover only those blocks, then set the data file online again.

园管中层流的雷诺数必然大于3000。你是 TestKing.com 的一位安全管理人。网络由一个包括一棵树上的三个域的活动目录域组成。所有的服务器运行Windows Server 2003。所有的计算机都是域的成员。森林的功能层是Windows 2000，每个域的功能层是Windows Server 2003.森林中的所有用户都在根域中。两个子域包括客户计算机帐户和服务器帐户。只有根域包括全局目录服务器。TestKing使用一个应用程序来在一个自定义目录部分储存数据。这个应用程序运行在所有三个域中的域控制器上。你添加在一个自定义目录部分管理数据的用户到一个名为App Managers的全局组中。你添加App Managers组到一个名为App Data的本地域组中。你为App Data组分配对自定义目录部分的所有对象的Allow-Modify许可。App Data组中的某些用户报告：当他们尝试访问应用程序数据时，他们收到一个访问拒绝消息。App Managers组中的其他用户可以成功访问在一个自定义目录部分的程序数据。你需要保证App Managers组中的所有用户可以成功访问程序数据。你应该做什么？（）提高森林的功能域到Windows Server 2003。改变App Data 组的范围到全体的。在两个子域中安装一个全局目录服务器。在两个子域之间创建一个快捷方式信任关系。可燃气体、可燃液体的液体的蒸气或可燃粉尘和（）混合达到一定浓度时，遇到火源就会爆炸，这个浓度范围称为爆炸极限。氧气。空气。可燃气体。氮气。 What is the result？（） Compilation fails.。 An exception is thrown at runtime.。 The variable first is set to null.。 The variable first is set to elements[0].。下列钙拮抗剂各种药理作用中，抑制心肌收缩力作用较突出的是（）尼群地平。地尔硫卓。维拉帕米。普尼拉明。尼莫地平。

Users complain SQL statements using a particular index fail. Using DBVERIFY， you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large.
What is the least disruptive recover strategy available in Oracle9i？（）

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[单选] Users complain SQL statements using a particular index fail. Using DBVERIFY， you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large. What is the least disruptive recover strategy available in Oracle9i？（）

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[单选]
Users complain SQL statements using a particular index fail. Using DBVERIFY， you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large.
What is the least disruptive recover strategy available in Oracle9i？（）