生命的生物基质有多少种？
我们知道有多少种支持生命的生物基质？目前我们所知的基于碳的三维化学基质是我们的现有基础。还有其他的基质吗？有哪些可能的前景？
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How many biological substrates that support life do we know of? There's our current Chemistry in three dimensions substrate based on carbon. Are there any others? What are some likely prospects?