【单选题】关于初次体液免疫应答的说法错误的一项是( )
【判断题】由于楔键在装配时被打入轴和轮毂之间的键槽内,所以会造成轮毂与轴的偏心与偏斜
【单选题】李某,男,35岁,因"头部斑片状脱发2个月"就诊。患者平日体健,无烟酒嗜好。近半年来因工作繁忙,经常失眠头晕,饮食无规律。2个月前理发时无意中被发现头顶部一处圆形、甲盖大小的斑片状脱发区,无痛痒及其他不适症状。后该脱发区逐渐增大,并于枕部又出现类似脱发区,遂来门诊就诊。既往无肝炎及结核等传染病史,无药物及食物过敏史,近期无手术及服药史。无烟酒嗜好。家族史无特殊。依据患者病史与皮疹特点最可能患的疾病...
【简答题】学测2: In China, safety education is very important now. 46 should students do to keep themselves safe? What are the 47 at school? Take a look. Stampedes(踩踏, earthquakes and fires are the main accidents...
【简答题】完形填空: ( 共 10 小题;每小题 1 分,满分 10 分 ) In China, safety education is very important now. 46 should students do to keep themselves safe? What are the 47 at school? Take a look. Stampedes (踩踏 , earthquakes a...