(Corvallis, OR)  --  Marcus McMaryion threw for 265 yards and five touchdowns as the Beavers thumped the Arizona Wildcats, 42-17, on Saturday.  Ryan Nall led OSU's ground attack with 124 yards and a score.  Oregon State improved to 3-and-8 with the win.  The Beavers host the Ducks on Saturday afternoon at Reser Stadium for the Civil War.