【单选题】患者男,44岁,因“不明原因间断性发热伴右下腹痛5年,再发6d”来诊。患者5年前曾因急性右下腹痛行阑尾切除术,术中及术后病理可见肠系膜局部出血坏死伴炎性反应,肠系膜动、静脉广泛血栓形成,术后症状未缓解。实验室检查:ESR46mm/h(↑),CRP110mg/L(↑),RF、ANA、ENA、ANCA均(-),乙型肝炎五项均(-),血培养(-)。超声:腹腔干、左肾动脉主干动脉瘤形成,右肾动脉未见异常;...
【单选题】The cap and new shell are tightened up and then removed and the thickness of the wire measured by _____.
【单选题】According to Figure 2, as the thickness of the lake clay deposit increases from Grand Forks to Site 3, the thickness of the glacial till beneath it:
C.
first increases and then decreases.
【简答题】The existing satellites are not good at detecting the thickness of the ice partly because the orbits of satellites with ______do not cover every portion of the ocean.
【单选题】患者男,44岁,因“不明原因间断性发热伴右下腹痛5年,再发6d”来诊。患者5年前曾因急性右下腹痛行阑尾切除术,术中及术后病理可见肠系膜局部出血坏死伴炎性反应,肠系膜动、静脉广泛血栓形成,术后症状未缓解。实验室检查:ESR46mm/h(↑),CRP110mg/L(↑),RF、ANA、ENA、ANCA均(-),乙型肝炎五项均(-),血培养(-)。超声:腹腔干、左肾动脉主干动脉瘤形成,右肾动脉未见异常;...
【单选题】( )采用光学原理在光线较暗的场合下将视觉材料展示在亮度较高的屏幕上。