单选题:题共用备选答案A.淀粉B.壳聚糖C.甲基纤维素D.硅橡胶E.聚乳酸天然的囊材为

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  • 题目类型:单选题
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题目内容:
题共用备选答案
A.淀粉
B.壳聚糖
C.甲基纤维素
D.硅橡胶
E.聚乳酸

天然的囊材为
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