It can't be 10.04, as I installed it from scratch on the computer I am right now and that doesn't happen. "Copy" is "Shift+Ctrl+C" (in older versions it had no shortcut, only "Paste" had "Shift+Ctrl+V").
I replied because I'm concerned it will be in the 10.10 version, but there is only an alpha version recently released (the first one of the 10.10 pre-releases).
As a developer I always have multiple terminals open and never saw that before.