【名词&注释】
文化差异(cultural difference)、个体化(individual)、功能障碍(dysfunction)、个体差异(individual difference)、老年期(period of decrepitude)、因人而异(given different)、皮下组织(subcutaneous tissue)、外耳道(external auditory canal)、年龄和性别差异(age-and sex-related difference)、皮脂腺(sebaceous gland)
[单选题]对外耳道(external auditory canal)错误的描述是()
A. 全长2.5~3.5cm
B. 由外耳道(external auditory canal)口直行至鼓膜
C. 外耳道(external auditory canal)的外1/3为软骨部,内2/3为骨部,外面被覆皮肤
D. 软骨部皮肤富有皮脂腺(sebaceous gland)和耵聍腺
E. 软骨部皮肤皮下组织(subcutaneous tissue)少