In this version, the first could be D with a 7th added but missing the 5th. The second is just a major third and you can't say much more about it than that. The third one is ambiguous. It could be a chord of D with a major 7th, but it's missing the third so you can't tell if it's major or minor. Or, it could be a chord of A with an added 11th in some sort of inversion... but I think that's stretching it as there's no 5th, 7th, or 9th...