与受累牙牙根融合的是()
A.成釉细胞癌
B.牙源性钙化囊性瘤
C.牙源性角化囊性瘤
D.始基囊肿
E.成牙骨质细胞瘤
参考答案:E
Mrs. Jenny gave us _________ on how to learn English well.[ ]
A. some advices
B. many advices
C. some advice
D. an advice
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