好奇一问, 关於restore mba 2013 after install Mavericks~~~

好奇一问, 我买部 mba 2013 时系 Mountain Lion, 最近上0左 Mavericks,
咁如果用 command + R 去 restore 部机, 会系 Mountain Lion 定 Mavericks?

Mavericks

If you press option+command+r, you can bypass the internal recovery partition and install whatever version of OS X that come with it

If you press command+r, with the presence of an internal recovery partition, you can then restore to the current version of OS X

A simple way to clean install the latest mac os x is to use the Apple recovery partition assistant to create a USB recovery partition and from there you can unmount and format the drive