[UPHPU] caching style sheets, what's a unique URL?

[Wade Preston Shearer]

Does anyone know if a browser will consider the following style sheet  
URL examples unique and therefore load the second one (instead of  
considering it already cached)?

/path/to/file/name.css?some=blah&other=blah
/path/to/file/name.css?some=stuff&other=stuff
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