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【单选题】
釉质发育不全的临床表现是（）A.
釉质表面呈不透明白噩色，并出现深浅不等的带状或窝状凹陷
B.
恒牙在同一时期发育的对称牙上，釉质颜色改变呈白平色或黄褐色
C.
牙釉质颜色改变
D.
牙釉质或牙骨质呈白垩色或黄褐色，探诊有粗糙感
E.
牙的窝沟有色素沉着，不，无墨浸状
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