单项选择题

Huskless, milled rice ______.

A．was cheaper than unmilled rice
B．was less nourishing than unmilled rice
C．was more nourishing than unmilled rice
D．cured beri-beri
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单项选择题
A good mixed diet ______.
A．normally contains enough vitamins
B．still needs supplementing with vitamins
C．is suitable for religious fasting
D．is often difficult to arrange
单项选择题
The chickens Eijkman noticed in the hospital yard ______.
A．couldn't digest the huskless rice
B．proved beri-beri is transmitted by germs
C．were later cooked for the patients' food
D．were suffering from vitamin deficiency
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