Tuesday, April 11, 2006


Carnivorous mammals can endure what would otherwise be lethal levels of body heat because they have a heat-exchange network which kept the brain from getting too hot.

(A) which kept
(B) that keeps
(C) which has kept
(D) that has been keeping
(E) having kept

Official Answer: B
posted by Piscean at Tuesday, April 11, 2006

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