[多选] You are using replication and the binary log files on your master server consume a lot of disk space. Which two steps should you perform to safely remove some of the older binary log files?（）

A . Use the command PURGE BINARY LOGS and specify a binary log file name or a date and time to remove unused files
B . Execute the PURGE BINARY LOGE NOT USED command
C . Remove all of the binary log files that have a modification date earlier than today
D . Edit the .index file to remove the files you want to delete
E . Ensure that none of the attached slaves are using any of the binary logs you want to delete

You are working on Oracle Database 10g， which is in ARCHIVELOG mode. All the archived log files are intact. In which scenario would performing a recovery require the opening of the database with the RESETLOGS option？（） loss of one of the tablespaces。 loss of a system data file。 loss of one of the control files。 loss of a tempfile。 loss of the only member of an unarchived redo log group。 loss of a member from each redo log grou。婴儿阶段（特别是2岁前）游戏的基本特征是（）社会性。象征性。规则性。感觉运动性。 Which statement is true about mouse events? （） The cursor style can be set to CAUTION. 。 Double-clicking a mouse button can potentially fire six mouse event triggers. 。 The values for the SYSTEM.MOUSE_BUTTON_PRESSED system variable can only be 1 or 2. 。 Click and double-click button actions can only detect if the mouse is positioned in an item.。关于手法分级范围的描述正确的是：（）关节可动范围的大小不影响分级。当关节活动范围减少时，分级范围相应减小。当治疗后关节活动范围改善分级范围保持不变。当治疗后关节活动范围改善时，分级范围相应增大。当关节活动范围减少时，分级范围相应固定。 You need to perform an online table redefinition of an existing SALES table to partition it into two tablespaces TBS1 and TBS2. The SALES table has a materialized view， materialized log， indexes， referential integrity constraint， and triggers with the PRECEDES clause existing on it. What action is required for dependent objects when you perform online table redefinition？（） The dependent materialized view should have a complete refresh performed after the online table redefinition process.。 Triggers with the PRECEDES clause should be disabled before the online table redefinition process.。 Referential integrity constraints must be manually enabled after the online table redefinition process.。 The materialized log should be dropped before the online table redefinition process.。 You are using replication and the binary log files on your master server consume a lot of disk space. Which two steps should you perform to safely remove some of the older binary log files?（）

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[多选] You are using replication and the binary log files on your master server consume a lot of disk space. Which two steps should you perform to safely remove some of the older binary log files?（）

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