影响X线产生的因素,不包括() ["靶物质","管电流","管电压","焦点面积","高压波形"]
妊娠期高血压疾病的孕妇眼底检查描述不正确的是() ["视网膜小动脉痉挛","视网膜水肿","视网膜絮状渗出、出血","小动脉硬化屈曲、有压迹","视网膜脱离"]
目前应用的O139群霍乱弧菌的国际标准株为() ["O395","569B","1119","MO45","B-43"]
男性患者,42岁,发现大腿肿块生长迅速,予以切除。肿物直径6cm,质韧,灰白色,镜下见肿瘤细胞排列成羽毛状结构,细胞间有多量的胶原纤维,核分裂较少,免疫组化Vimentin阳性,SMA、CD8、EMA阴性。该患者最可能为() ["A.恶性纤维组织细胞瘤","成人型纤维肉瘤","平滑肌肉瘤","肌成纤维细胞肉瘤","纤维型滑膜肉瘤"]
首先使用钠石灰将二氧化碳吸收法用麻醉者是() ["Waters","Lavoisier","Rovenstine","Snow","Walter"]
Apgar评分应在生后()进行,不正常者()时再评一次。