颈嵴
参考答案：
牙冠唇、颊面沿颈缘部位，微显突起的细长形的牙釉质隆起。
Tom looked at Jenny , tears _______ his eyes, and shouted out the words ________ in his heart for years.
A．filling; having been hidden
B．filled; hidden
C．filling; hidden
D．filled; hiding
斑蝥米炒时，每100kg药物用米的量是（）
A.5kg
B.10kg
C.15kg
D.20kg
E.25kg
