A team of American scientists has found a treatment to protect humans from the d
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A team of American scientists has found a treatment to protect humans from the deadly H5N1 flu virus, ________ brings great ________ to the world.
A.that; appearance
B.which; relief
C.which; advantage
D.that; profit
试题答案
B
第一空考查非限制性定语从句，which 做主语，指前半句话的含义，第二空根据句意是把很大的安慰带给世界。relief解脱，放松，appearance出现，advantage有利条件，profit 利润，所以选B。