ZGM型中速辊式磨煤机常用油脂()。 ["A、N320#硫磷型重负荷齿轮油;","B、L-HM46抗磨液压油;","C、634磨辊专用油;","D、46#润滑油。"]
患者,男,70岁,戴用全口义齿2天后,复诊说义齿易脱落,要求治疗如果患者轻微开口时,上颌义齿易脱落,应重点检查()。 ["A.后堤区封闭状况","人工牙排列状况","上颌牙槽骨吸收状况","上、下颌间咬合状况","上颌结节是否避让"]
下列哪种情况不适合手术切开复位() ["A.粉碎性骨折,非手术治疗不能达到满意的复位","B.关节内骨折,骨折断面超过2cm","C.骨折合并重要的血管神经损伤","D.骨折断端有软组织嵌入,手法无法解除","E.骨折有移位,非手术治疗不能达到解剖复位"]
左、右心衰的共同X线表现是() ["上腔静脉影增宽","肺静脉扩张","横膈抬高","胸腔积液","肺水肿"]
组织对缺血的耐受性,下述哪种表达正确() ["骨骼肌>脑>心肌","心肌>脑>骨骼肌","脑>心肌>骨骼肌","骨骼肌>心肌>脑","心肌>骨骼肌>脑"]
心房颤动检查