单项选择题
A. b， a， c， d， e
B. a， c， b， d， f
C. c， a， b， d， e
D. c， a， b， d， f
E. e， a， b， d， c
单项选择题 Which of the following advisors is run in every maintenance window by the auto-task system?（）
单项选择题 Which of the following advisors within the Oracle advisory framework will analyze a single SQL statement and make recommendations for performance improvement?（）
单项选择题 You have a very large table that your users access frequently. Which of the following advisors will recommend any indexes to improve the performance of queries against this table?（）