(TheGlobeandMail) - Perhaps only in Beijing could Tian Chunna’s job be so profitable: She teaches classrooms of Chinese business executives how to drink wine and look sophisticated while doing so. Previously patrons of watery beers or throat-burning grain liquors, China’s nouveau riche have taken to wine with gusto. They prefer it French, red and fruity; the more expensive, the better. Which means China is rapidly becoming one of the world’s most important markets for winemakers, as sagging economic times drag down sales in Europe and dampen growth in North America.