By Nick Selbe The Terrapins beat out Cornell to complete a perfect 18–0 season, becoming the first men’s national championship team to go unbeaten since 2006. The Maryland men’s lacrosse team held off a late rally attempt by Cornell on Monday to secure a 9–7 win in the national championship game, capping off a dominant undefeated season. The Terrapins held a 9–2 lead and appeared on their way to another comfortable win, but Cornell scored five unanswered goals to get within striking distance. The Big Red got within three goals with 7:27 remaining in the fourth quarter, but was grounded from th…