单项选择题

The disease "beriberi"______.

A．kills a large number of western people
B．is a vitamin deficiency disease
C．is transmitted by diseased rice
D．can be caught from diseased chickens
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单项选择题
Fresh fruit and vegetables______.
A．contain more vitamin C than any other food
B．decrease our resistance to colds
C．contain every kind of vitamin
D．increase our susceptibility to influenza
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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