双空题 test1
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For each blank select one enty from the corresponding column of choices. Fill all blank in the way that best completes the text.
Observations from the Chandra X-ray Observatory give astronomers even more evidence that galaxies (i)__________ and that even their central supermassive black holes eventually (ⅱ)__________.
Blank(i)
(A) swell
(B) coalesce
(C) endure
Blank(ii)
(D) merge
(E) implode
(F) deteriorate
Select one entry from each column.
答案与解析
我的答案
1.未作答
正确答案
1.B，D
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