A. It can change the surroundings. B. It can reduce costs. C. It can offer jobs. D. It can bring profits.
B. 深覆 C. 远中邻 D. 护髓 E. 防止充填物脱落
A. 成釉细胞瘤 B. 中央性颌骨癌 C. 牙龈瘤 D. 牙龈癌 E. 恶性淋巴瘤