单项选择题 Youneedtocallanunmanagedfunctionfromyourmanagedcodebyusingplatforminvokeservices.Whatshouldyoudo？（）

单项选择题 YouuseReflectiontoobtaininformationaboutamethodnamedMyMethod.YouneedtoascertainwhetherMyMethodisaccessibletoaderivedclass.Whatshouldyoudo？（）

单项选择题 You work as an application developer at Certkiller .com. You are currently in the process of creating a shared assembly.  You are required to perform many integration tests to make sure the assembly works properly with multiple applications. You want to avoid constantly updating each application’s reference when the assembly is updated.  You have set the DEVPATH environmental variable to the default build location for the shared assembly.  You need to ensure that the Common Language Runtime （CLR） uses DEVPATH to locate the shared assembly. What should you do？（）