I beg to differ. Read here: "Its pronunciation is based on the Beijing dialect, its vocabulary on the Mandarin dialects, and its grammar is based on written ver

I beg to differ. Read here: "Its pronunciation is based on the Beijing dialect, its vocabulary on the Mandarin dialects, and its grammar is based on written vernacular Chinese." https://en.wikipedia.org/wiki/Standard_Chinese https://en.wikipedia.org/wiki/Standard_Chinese