单项选择题

The ingredient missing from milled rice______.

A．was vitamin B
B．did not affected the chickens
C．was named the Eijkman vitamin
D．has never been accurately identified
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单项选择题
In this passage the author argues that ______.
A．efficiency must be raised in the poultry industry
B．raising poultry can provide more protein than growing grain
C．factory fanning will do more harm than good to developing countries
D．hungry nations may benefit from the development of the poultry industry
单项选择题
What the last paragraph tells us is the author's ______.
A．detailed analysis of the ways of raising poultry in Bangladesh
B．great appreciation of the development of poultry industry in Bangladesh
C．critical view on the development of the poultry industry in Bangladesh
D．practical suggestion for kite improvement of the poultry industry in Bangladesh
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