对大隐静脉的描述，错误的是（）。 ["在其末段有5条属支注入","经内踝后方上行","在足内侧缘续于足背静脉弓","易发生静脉曲张","经股前内侧上升注入股静脉"] 以下哪种CD分子是特异性表达于B细胞表面的（） ["CD28","CD19","CD3","CD8","CD4"] 一个具有良好使用价值的心理测试应具备的条件有（）。 ["标准化","信度","效率","效度","常模"] 肺毛细血管楔压（PCWP）正常值。（） ["6-15mmHg","5-10mmHg","5-15mmHg","10-15mmHg","6-10mmHg"] 下列哪种疾病属于缺血性疼痛（） ["肾绞痛","心绞痛","血栓闭塞性脉管炎","急性胰腺炎","烧伤"] 过敏性紫癜常见的首发症状为（）