Yes.
Yes. Syphillis is caused by a bacteria. So if you are infected again, you are less likely to fall sick/heal faster.
It can occur more than once.
You can be be exposed to it more than once
yes. enzyme can be used more than once
Yes, you can have LEEP more than once.
Yes, you can duplicate Pokemon on Emerald more than once.
You can't capture Uxie more than once on this game, but you can own more than one Uxie if it is traded to you.
To repeat a command more than once.To repeat a command more than once.To repeat a command more than once.To repeat a command more than once.
No, you can't upgrade a gun more than once.
copy images more than once.
Intentionally voting more than once
you can use it more then once.
No, a Lego MBA code cannot be used more than once.