小儿喉部的解剖特点。
甲状腺髓样癌起源于甲状腺滤泡旁细胞，血清哪种激素浓度 ["A．甲状旁腺激素","B．甲状腺激素","C．肾上腺素","D．降钙素","E．内皮素"]
哪些类型的颅内出血常有神经系统后遗症() ["A．Ⅰ级IVH","B．Ⅱ级IVH","C．Ⅲ级IVH","D．Ⅳ级IVH","E．脑实质出血"]
用变异百分率法对某单位进行白细胞计数考核．均值为9．6×10^9／L．某人测得值为9×10＾9／L，该人可评为： ["A．A级","B．B级","C．C级","D．D级","E．E级"]
极低出生体重儿，因窒息引起颅内出血的常见部位() ["A．脑室内出血","B．脑室管膜下出血","C．脑实质出血","D．小脑出血","E．硬膜下出血"]
简述喉腔的分区。
