问题
单项选择题
正常牙龈的颜色是（）
A.鲜红色
B.暗红色
C.暗紫色
D.粉红色
E.紫红色
答案
参考答案：D
解析：试题难度：易，正常牙龈的颜色为粉红色，质韧；在有炎症时颜色会发生改变，可表现为暗红色或鲜红色，质地也变脆。因此，在备选答案中只有D正确。
搜题请搜索小程序“爱下问搜题”
正常牙龈的颜色是（）
A.鲜红色
B.暗红色
C.暗紫色
D.粉红色
E.紫红色
参考答案：D
解析：试题难度：易，正常牙龈的颜色为粉红色，质韧；在有炎症时颜色会发生改变，可表现为暗红色或鲜红色，质地也变脆。因此，在备选答案中只有D正确。
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