单项选择题 You work as an application developer at Certkiller .com. You are currently in the process of developing a business logic component that requires long calculations. You have identified numerous tasks within this application that can be done asynchronously. You notice that these tasks are mutually dependent and require complex synchronization techniques so that it can manage efficiently. You decide to use Microsoft .NET 2.0 to take advantage of its new thread management features. You need to create and start the application threads. What should you do？（）

单项选择题 You work as an application developer at Certkiller .com. You have recently created a multithreaded application to manage Certkiller .com’s inventory system.  The fulfillment task has to be executed on a regular basis， while other tasks are performed in the application. The task does not need any input to start.  You are required to create and start the fulfillment thread using the appropriate code.What code should you use？（）

单项选择题 You work as an application developer at Certkiller .com. Certkiller .com has asked you to create a multi-threaded application， which executes a critical database  backup operation on an hourly basis. You define this operation with the following code：  public void BackupDB （） {  //Implementation code }  You then create a Thread object for the purpose of invoking this method.  You need to ensure that the thread is scheduled for execution before any other thread at runtime.What should you do？（）