对于滋养层发育,下列哪项恰当() ["细胞滋养细胞是执行功能的细胞","滋养层外层是细胞滋养层","合体滋养细胞是分裂生长的细胞","细胞滋养细胞由合体滋养细胞分化而来","滋养层内层是基底膜"]
主要支配皮脂腺分泌的是() ["神经因素","代谢因素","雄激素水平","雌激素水平"]
患者高热1周。检查:体温40℃,脉搏90次/分,血白细胞4.0×109/L,嗜酸性粒细胞消失。应首先考虑的是() ["伤寒","中毒性痢疾","中毒性肺炎","流行性脑脊髓膜炎","急性病毒性肝炎"]
亚急性头痛的病程常在() ["2周内","3个月内","1年","大于3个月","半个月"]
关于流感的抗病毒治疗,叙述正确的有() ["应尽早开始抗病毒治疗","一旦确诊,均应开始抗病毒治疗","甲型H1N1流感(2009)对金刚烷胺耐药","12岁以下患儿不推荐使用金刚烷胺","6岁及以下患儿不推荐使用奥司他韦"]
何谓运动障碍性疾病、临床类型及特征?