单项选择题

The ingredient missing from milled rice ______.

A．was vitamin B
B．did not affect the chickens
C．was named the Eijkman vitamin
D．has never been accurately identified
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单项选择题
The disease'beri-beri' ______.
A．kills large numbers of western peoples
B．is a vitamin deficiency disease
C．is transmitted by diseased rice
D．can be caught from diseased chickens
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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