单选题
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.
【正确答案】
C
【答案解析】
体中排出的维他命越少，说明身体吸收的越多，对维他命的需求量越大。
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