When a person eats food, the body has to convert that food into molecule chains that can be converted to energy and raw ____________

单选题

When a person eats food, the body has to convert that food into molecule chains that can be converted to energy and raw ____________

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单选题

When will a person meet with a life-threatening situation?

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问答题

person

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单选题

a test was given in the United States．Those tested included people of different ages,from 12 to 83．During the experiment,these people were given all kinds of breakfasts and sometimes they got no breakfast at all．Special tests were set up to see how well their bodies worked when they had eaten a certain kind of breakfast．The results sow that if a person eats a proper breakfast,he or she will work with better effect(影响)than if he or she has no breakfast．This fact appears to be especially true if a

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问答题

when

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