单项选择题

How can a urine test show a patient may have a vitamin deficiency

A．A lot of vitamins are in the urine.
B．The body refuses to absorb vitamins.
C．Only a few vitamins passes through the body.
D．A lot of vitamins are taken in by the body.

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热门试题

单项选择题

Which of the following is NOT true according to the passage

A．Nutritionists have two laboratory ways of deciding if a person has malnutrion.
B．Having too much of some nutrients is much better than having too little of those.
C．The nutritionists are able to look for external signs of malnutrition.
D．Too many calories will make some people have malnutrition, too.

单项选择题

The following are external signs of vitamin deficiencies except ______.

A．dry skin
B．thinner and duller hair
C．cracks at the corner of the mouth
D．purplish tongue