膝关节脱位原因下列哪一项是错误的() ["结构欠稳定","关节囊坚强","关节内韧带坚固","关节外韧带坚固","伸膝装置完善"]
哪一项不是扁平疣的诊断要点() ["好发于青少年","多发于暴露部位,如面部、手背","有自身接种的特点,可见同心反应","皮损呈米粒至高梁米大小扁平丘疹,表面光滑,孤立散在,淡黄褐色或正常皮肤色,或微痒","多发于躯干、四肢部位,有接触传染"]
在伤口周围皮肤可出现捻发音的是() ["附骨疽","烂疔","疫疔","流注","有头疽"]
15岁的小朱由西安跟随父母来到沿海开发区,他听不懂老师和同学们的语言,学习成绩下降,出现焦虑、紧张等不适症状,他的压力源来自于() ["生理性压力源","社会性压力源","心理性压力源","文化性压力源","物理性压力源"]
下列疾病不属于痈的范畴的是() ["颈痈","腋痈","脐痈","臀痈","委中毒"]
简述物流科学的性质。