Dropped from Dmoz, but still in Google's directory

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My site was in Dmoz for about a year, and then suddenly dropped, but
it's still in the Google directory which I always thought was a copy
of Dmoz. I also noticed that after not showing up in Dmoz under *any*
category my site's PR fell from 3 to 1. Could someone please explain
what might be happening? Thanks!

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