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
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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
单项选择题
Western governments encourage the poultry industry in Asia because they regard it as an effective way to______.
A．boost their own exports
B．alleviate malnutrition in Asian countries
C．create job opportunities in Asian countries
D．promote the exports of Asian countries
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