在powerpoint的幻灯片浏览视图下，不能完成的操作是（）。
A. 调整个别幻灯片的位置
B. 删除个别幻灯片
C. 编辑个别幻灯片内容
D. 复制个别幻灯片
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Given： What is the result？（）
A. Compilation fails.
B. An exception is thrown at runtime.
C. The code executes normally and prints "foo".
D. The code executes normally， but nothing is printed.
You issue this RMAN command： RMAN> create script Level0Backup { backup incremental level 0 format ‘/u01/db01/backup/%d_%_Sp’ fileperset 5 （database include current controlfile）； sql ‘alter database archive log current’； } Which three statements are true about the Level0Backup script you just created？（）
A. The script is stored only in the control file.
B. The script is stored only in the recover catalog.
C. The script can be executed only by using the RMAN RUN command.
D. The commands of the script can be displayed with the LIST command.
E. The commands of the script can be displayed with the PRINT command.
F. The commands of the script can be displayed with the REPORT command.
Your application regularly issues the following statement: SELECT * FROM BANK_ACCT WHERE ACCT_BALANCE BETWEEN 1000 and 10000; Which of the following database objects would be inappropriate for use with this statement?（）
A. Materialized views
B. Indexes
C. Index-organized tables
D. Hash clusters
下列对规范性文件的效力等级的表述正确的是（）。
A. 宪法>行政法规>法律>地方性法规
B. 宪法>地方性法规>法律>行政法规
C. 宪法>法律>行政法规>地方性法规
D. 行政法规>宪法>法律>地方性法规
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