Ping TangPing Tang 35322 Gold badges66 silver badges1515 bronze badges one 1 "A single" draws additional awareness to this distinct element, while also suggesting that you may perhaps (or giving you the choice to) talk about other attributes afterwards. To paraphrase, a single helps make the attribute "more Distinctive". *Chairs https://vodemcasa.com/one-tv-p2p-plano-semestral