男,52岁,血涕二月余,CT如图所示,最可能的诊断为() ["鼻咽癌","咽旁混合瘤","咽部神经纤维瘤","小唾液腺瘤","咽旁脓肿"]
针对这批产品,过程检验方法可采用()。 ["固定场所检验","巡回检验","感官检验","破坏性检验"]
女性患者,停经50天,感轻度腰酸腹坠痛,阴道有少许出血3天,小便频数。舌淡苔白,脉沉滑迟弱。尿妊娠试验阳性。其治法是() ["健脾益气,安胎止血","益气养血,安胎止血","固肾安胎,佐以益气","补血养血,安胎止血","以上都不是"]
用藻酸盐印模材取印模后要立即灌模型,是因为印模材() ["A.会吸水收缩","B.会失水收缩","C.会失水膨胀","D.与模型不易分离","E.影响模型强度"]
茧唇的发生与以下哪项无关() ["长期吸烟","口唇白斑","口唇赘疣","遗传因素","皲裂长期不愈"]
在石油化工中应用最为广泛的是()热裂解,其设备为管式裂解炉。