某幼儿园中班建构区，一个男孩（甲）在用软塑料块搭“大高楼”，另一个男孩（乙）在他旁边玩飞机。每当甲搭好了“大高楼”，乙的“飞机”就开过来撞倒了甲的“大高楼”。细心的王老师发现，乙的行为并没有引起甲的不悦，每当“大高楼”被撞倒后，甲就迅速地又搭起一座“高楼”，似乎在等待着乙的“飞机”的又一次到来。由此，王老师判断两个男孩正在非常默契地玩一种合作游戏，所以不但没有去干预，而是坐到甲的身旁，也拿软塑料块搭“高楼”，一边搭一边说：“我来搭一座不容易撞倒的大楼。”在老师的示范启发下，“高楼”越搭越结实，大家玩得津津有味。结合教师在学前儿童游戏过程中的现场指导策略的原理，分析王老师指导本次游戏的合理之处。
Which three tasks can be performed using regular expression support in Oracle Database 10g？（） [" it can be used to concatenate two strings."," it can be used to find out the total length of the string."," it can be used for string manipulation and searching operations."," it can be used to format the output for a column or expression having string data."," it can be used to find and replace operations for a column or expression having string data."]
You observe that a database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine that required size of the database buffer cache？ （） [" Memory Advisor"," Segment Advisor"," SQL Tuning Advisor"," SQL Access Advisor"," Automatic Database Diagnostic Monitor （ADDM）"]
在图形上，把一个类画成一个矩形，表示类的封装。一般包含的组成部分有（） ["类名","属性","方法","操作"]
A single transaction can be scanned in parallel by：（） [" Sophos and McAfee"," Webroot and Sophos"," Webroot，Sophos and McAfee"," None of the above"]
如果说80年代是诗歌与小说的年代，那么（）年代就是散文的年代。
