[衛(wèi)生法規(guī)]氟牙癥牙齒特點(diǎn)是

原題:
[衛(wèi)生法規(guī)]氟牙癥牙齒特點(diǎn)是

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閾下刺激也可誘發(fā)反應(yīng)的時(shí)期是
答案：
C