Vitamins are organic compounds ( ) and must be ingested to maintain proper
bodily functions.
1>that they can't be produced by the body
2>that can't be produced by the body
정답은..2번...왜 2번인지.... that이 어떤 쓰임새인지...
bodily functions.
1>that they can't be produced by the body
2>that can't be produced by the body
정답은..2번...왜 2번인지.... that이 어떤 쓰임새인지...
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