单项选择题
A．the nasal vestibule B．the sphenoethmoidal recess C．the superior nasal meatus D．the middle nasal meatus E．the inferior nasal meatus
A．musculocutaneous nerve B．median nerve C．ulnar nerve D．axillary nerve E．radial nerve
A．lateral 1/3 of clavicle B．medial border of scapula C．lateral border of first rib D．head of humerus E． pectoralis major