菜单的定价要遵循哪些原则？
危害液化石油气钢瓶安全使用的是（）。 ["过量充装","介质混装","定期检验","乱倒残液"]
布鲁纳强调学习（）的重要性。 ["学科基本结构","行为习惯","榜样行为","动机"]
某宗土地2，000平方米，土地单价为1，000/平方米，国家规定的容积率为4，建筑密度为0.5，则楼面地价为（）元/平方米。 ["250","500","1，000","2，000"]
A pharmaceutical company has a requirement for 8.5 TB of usable storage for a new data center. The customer has multiple host applications running on Solaris， Windows 2003， HP-U/X， Linux， and IBM System i platforms. Which IBM System Storage DS8000 volume configuration providesthe best performance and highest availability for this customer（） ["RAID 3","RAID 5","RAID 6","RAID 10"]
要设置幻灯片的动画效果，应在哪一个菜单中进行：（）
