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【单选题】
When he came to, he found himself ____a chair, with his hands_____back..A.
to sit; tied
B.
sitting; tying
C.
sat; tied
D.
sitting; tied
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举一反三
【多选题】In the parameter file of the production database， the BACKGROUND_DUMP_DEST parameter is set to $ORACLE_HOME/users. Which two types of files would you find in this location？（）
A.
the alert log file
B.
the core dump files
C.
the change tracking file
D.
the user session trace files
E.
the database audit trail files
F.
the background process trace files