Xcode 4代码签名中的“任何iOS SDK”和“调试”之间有什么区别？

In Xcode 4's Build Settings, there are 2 places to enter a provisioning profile for each build type. The first is "Ad Hoc", "Debug" and "Release". Each of these has another place to put in a provisioning profile called "Any iOS SDK". Do I need fill in both? What's the difference between these?In Xcode 4's Build Settings, there are 2 places