Does jeopardy use true or false questions?

I'm willing to bet that out of over 45,000 clues, there's been at least one true/false. They are by no means regular clues. For one thing, they don't make sense because getting it wrong would make an easy gimmie to the other two contestants, and it would all come down to a reflex contest. (Not that the show isn''t already mainly a reflex contest.) For another reason, it goes against the show's theme of "no cutting corners" by regularly offering choices.