GRE Text Completion: Princeton-GRE填空Princeton - 1Y21AKG7VOQO585W9

At the edges of the universe astronomers have discovered (i)____________ objects called quasars, which have given scientists the first direct (ii)____________ of the existence of stars in distant galaxies. A. remote B. corroboration C. paranormal D. distortion E. viscous F. intuition