数据的加密和解密是（）的任务 正确。 错误。
人身风险 正确。 错误。
《项脊轩志》是明代作家 的古文名篇，《湖心亭看雪》则是（）的小品文佳作。 正确。 错误。
You work as an application developer at Certkiller .com. You have been given the task of developing a Windows service application that regularly monitors other Windows services on the same computer. This Windows service application must also log any abnormal file system activity. You have added the following class to the Windows service application： public class EnumerateService ： ServiceBase { public static EnumerateService （） { this.ServiceName = "Enumerate Service"； this.CanStop = true； } protected override void OnStart （string[] args） { // Enumerate all services and initialize the FileSystemWatcher } protected override void OnStop （） { // Stop the FileSystemWatcher and perform cleanup } public static void Main （） { EnumerateService service = new EnumerateService（）； } } You then create the installer for the Windows service application， and install the Windows service application. You have configured the Windows service Startup type to Automatic， and rebooted the system. You then test the new Windows service application， and find that it is not working.You need to ensure that the service is working properly. What should you do？（） 正确。 错误。
矿石的结构和构造研究它们有何意义？ 正确。 错误。
经济净现值是反映项目对国民经济净贡献的相对指标。
