COQUELLES, France -- Queen Elizabeth II and President Francois Mitterrand formally inaugurated the Eurotunnel rail link connecting their two countries Friday, snipping a ribbon that symbolically ended Britain's island isolation with the opening of a land link to the Continent. The British queen and French president inaugurated the $15.8 billion, 33-mile (50 km) cross-channel tunnel by cutting a red, white and blue ribbon just minutes after they arrived at the Coquelles station close to the