题目内容
(请给出正确答案)
[主观题]
The chickens Eijkman noticed in the hospital yard______. A. couldn't digest the pol
The chickens Eijkman noticed in the hospital yard______.
A. couldn't digest the polished rice
B. proved “beri-beri” is caused by germs
C. were later cooked for the patients' food
D. were suffering from“beA-ben”
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