垂体微腺瘤是指肿瘤直径小于() ["3mm","5mm","10mm","15mm","20mm"]
下列哪种是α-葡萄糖苷酶抑制剂常见不良反应() ["低血糖症","腹胀和腹泻","下肢浮肿","乳酸性酸中毒","充血性心力衰竭"]
食管癌腔内型的X线特点是() ["累及范围长","巨大息肉样充盈缺损","病灶边界清楚","黏膜皱襞中断破坏","管腔扩张而狭窄梗阻不明显"]
怎样减少连铸坯中非金属夹杂物?
女性,30岁。停经46天,下腹部隐痛半月余,其后阴道持续少量出血3天,右侧附件触及鸡蛋大韧性包块,考虑为() ["卵巢囊肿","子宫肌瘤","子宫内膜异位","陈旧性宫外孕","妊娠黄体"]
一砖半标准砖墙,其计算厚度按()mm。