试比较RAM和ROM各具有什么特点？
You work as the application developer at Certkiller .com. Certkiller .com uses Visual Studio.NET 2005 as its application development platform. You are in the process of storing numerical values up to 2，100，000，000 into a variable and may require storing negative values using a .NET Framework 2.0 application. You are required to optimize memory usage. What should you do？ （） [" Int32"," UInt16"," UInt32"," Int16"]
建设项目的总概算中的工程监理费属于（）。 ["单位工程概算","预备费","建设单位管理费","间接费"]
厂内机动车辆驾驶员必须满足的生理条件之一是（） ["无色盲、色弱","年满16周岁","双目视力均1.0以上（包括矫正视力）","身高1.7米以上"]
表情倒错
利润
