题目：
窝沟龋的早期表现为（）
A.明显龋洞
B.损害部位透出墨浸状
C.损害部位呈白垩色
D.探诊有酸感
E.损害位于釉牙本质交界处
答案：
参考答案：C
窝沟龋的早期表现为（） A.明显龋洞 B.损害部位透出墨浸状 C.损害部位呈白垩色
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