Which Makes Wet Earwax 他们产生湿耳垢
Earwax comes in two types, wet and dry.
耳垢分为干态和湿态两种。
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They then found that the switch of a single DNA unit in the gene determines whether a person has wet or dry earwax.
他们发现基因中dna单链上的基因单元具有像开关一样的物质，该物质决定了人们的耳垢类型。
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