• 2022-10-29
    几丁质是[tex=1.643x1.143]otXoxjyPTzZNQvg3PeLB/g==[/tex]乙酰-D-葡糖胺以[tex=3.357x1.357]SH3aejp5MXpvt7MWkMKEi1l9r9QKHJApBVv9l2JIIzM=[/tex]糖苷键构成的均一多糖。(    )
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