1 2 3 1 _ _ _ 2 _ _ _ 3 _ _ _ ACROSS 1) a small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers 2) engage in 3) a female person who has the same parents as another person DOWN 1) a doctor's degree in dental surgery 2) the cardinal number that is the sum of one and one and one 3) a rapid automatic system to detect plastic explosives in passengers' luggage using x-ray technology and computers; designed for use in airports ** Scroll down for solution. ** Are you sure you want to peek? die did sis