简述地价的特征有哪些？
You work as a database administrator at Certkiller .com. In your production database， you observe that users’ transactions are consuming a lot of resource and you plan to impose resource restrictions by using Resource Manager. For which three resources can you enable usage restrictions by using Resource Manager？ （） [" CPU usage"," degree of parallelism"," number of open cursors"," number of sorts performed"," idle time for blocking sessions"," number of disk I\/O operations performed"," number of memory I\/O operations performed"]
机电传动系统稳定工作时，如果TM=TL，电动机旋转方向与TM相同，转速将产生的变化是（）。 ["减速","加速","匀速","停止"]
试鉴别下列各项哪些是改善设备电埸分布的措施（）。 ["互感器加防雨帽","在瓷质套管的导杆和瓷套管间刷半导体漆或胶复盖纸","变压器绕组上端的静电屏","变压器的吸湿器","电容型套管的绝缘与心棒中间的铝铂纸","瓷套外绝缘增加爬距","电缆干包塑料头应加锡铂纸","电瓷终端头加绝缘胶"]
Given: What is the result？（） ["1 2 3","Compilation fails because of an error in line 12.","Compilation fails because of an error in line 13.","Compilation fails because of an error in line 14.","A ClassCastException is thrown at runtime."]
角色扮演
