Friday, April 21, 2006


More than five thousand years ago, Chinese scholars accurately described the flow of blood as a continuous circle controlled by the heart, but it went unnoticed in the West.

(A) but it went
(B) but it was
(C) although it was
(D) but the discovery went
(E) although the discovery was

Official Answer: D
posted by ash at Friday, April 21, 2006

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