【单选题】【消耗次数：1】
口腔黏膜放射性损伤表现最严重的是（）
①
轻度黏膜疹
②
融合性黏膜炎
③
明显黏膜疹
④
斑点状黏膜炎
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口腔黏膜色素痣描述不正确的是（）
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为黑色素细胞的瘤样病变
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痣细胞可能来源于残留的黑色素细胞
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口腔黏膜痣以黏膜内痣最多
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口腔黏膜色素痣由圆形或多角形的痣细胞组成
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碱式碳酸铋同时还有抗酸作用
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枸橼酸铋钾的胶体特性较果胶铋更好
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No, he is still single.
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No, he doesnt.
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