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【单选题】
可用作不溶性骨架片的骨架材料的是:A.
果胶
B.
海藻酸钠
C.
聚乙烯醇
D.
壳多糖
E.
氧乙烯
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A.
卵巢浆液性乳头状囊腺瘤
B.
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C.
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D.
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E.
卵巢浆液性囊性腺纤维瘤
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A.
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B.
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C.
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