单项选择题

Which of the following can not be referred to as natural food

A．Vegetables and fruits with essential vitamins and minerals.
B．Foods grown in soil rich in organic matter.
C．Poultry fed in free pastures.
D．chickens raised on battery farms.

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热门试题

单项选择题

The use of chemicals and fertilizers in farming is meant to increase ______.

A．the quantity of foods
B．the quality of foods
C．either the quantity or the quality of foods
D．the quality as well as the quantity

单项选择题

The phrase live up to (Line 2, Para. 1) in the context means ______.

A．meet the standard of
B．realize the purpose of
C．fulfill the demands of
D．keep the promise of