单项选择题

A．Having selected food types.
B．Eating vegetables and fruits.
C．Eating as much as possible.
D．Having all food types in proper proportions.
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单项选择题
A．They have more dishes to choose.B．They buy their meals at a lower price.C．They can choose the place to eat.D．They don’t have to pay for a certain number of meals.
A．They have more dishes to choose.
B．They buy their meals at a lower price.
C．They can choose the place to eat.
D．They don’t have to pay for a certain number of meals.
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