Refresh rate is most noticeable a RR of 60Mhz looks like *bip*. your eyes will not like it,but 60fps is ok. But fps in games are not just eye candy,it has impact on gameplay.25fps is not a playable speed it may fool you eyes in movies but it will not do in games.
In linguistics and grammar, a pronoun (abbreviated PRO) is a word that substitutes for a noun or noun phrase. It is a particular case of a pro-form.
Meaning: A function word that is used in place of a noun or noun phrase. Classified under: Nouns denoting communicative processes and contents. Hypernyms (pronoun is a kind of...): closed-class word; function word (a word that is uninflected and serves a grammatical function but has little identifiable meaning).