单项选择题
A.12345678 B.12435678 C.51234678 D.61243578 E.67123458
A.上起眉弓下至下颌骨下缘 B.上起发际下至锁骨水平 C.上起发际下至舌骨水平 D.上起眉弓下至舌骨水平 E.上至颅底下至颈部区域
A.3 B.5 C.10 D.13 E.15