鼻中隔软骨、筛骨正中板和梨骨构成（）。
A.鼻后孔
B.外鼻骨部
C.鼻腔内侧壁
D.鼻腔顶壁
E.鼻腔底壁
参考答案：C
This small seaside village is such a perfect place for holidays that visitors never leave it____________．
A．feeling disappointing
B．felt disappointing
C．feeling disappointed
D．felt disappointed
圆而钝的畸形中央尖可
A．不处理 B．少量多次磨除 C．干髓术 D．根管治疗术 E．根尖诱导成形术
