单项选择题

Overproduced corn in American farms has been converted to ______.

A．feed cattle, pigs and poultry
B．manufacture automobile components
C．make artificial beef, pork, and chicken
D．become high-fructose low fat products
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单项选择题
The word obesity (Line 2, Para. 1 ) most probably means ______.
A．lack of nutrition
B．becoming too fat
C．abundance in calories
D．shortening of life span
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