[求助]Help me and tell me why?
Could you tell me why the answer to this question is A
o.g.180)Quasars are so distant that their light has taken billions of years to reach the Eath; consequently, we see them as they were duting the formation of the universe.
A) we see them as they were during
B) we see them as they had been duting
C) we see them as if duting
D) theyappear to us as they did in
E) they appear to us as though in[em08] |
