颅骨转移瘤多来自哪个途径()
A.血行转移
B.淋巴转移
C.周围直接侵入
D.蛛网膜下腔播散
E.无明显特征
参考答案:A
解析:血行转移是颅骨转移瘤最常见的途径,少量来自淋巴转移。
R医院连续5年在S市举办的“我最满意的医院”调查中高居榜首,该医院负责人表示,这是由于该医院提供了比其他医院更加优质的导诊服务。 以下哪项为真,最能支持该医院负责人的观点?
A.S市各大医院都在导诊服务中投入了大量精力,力图提高导诊服务质量
B.S市“我最满意的医院”调查已开展20年,高居榜首的均是公益医院
C.S市共有200多假医院,并非所有的医院都参与了此次调查
D.与R医院医疗水平相当,但导诊服务不佳的医院排名均不如R医院
The emergence of the European Union has been one of the defining events of the twentieth century. It has changed the political, economic, and social landscapes of Western European, changed the balance of power in the world by helping Europe reassert themselves on the world stage, and helped to bring the longest uninterrupted spell of peace in Europe recorded history. Until the beginning of the twentieth century, Europe was a continent of competing powers that repeatedly fought with each other on their own soil and took their mutual hostilities to other continents in their competition to build colonial empires. The tragic costs of nationalism were finally confirmed by two world wars, fought largely on Europe and leaving the Europe powers devastated and drained. If Europe had not learned of the barbarism and futility of war in the trenches of northern France and Belgium in 1914~1918, the horrors of the period 1939~1945 finally brought home the need to cooperate and to build the kind of society that would eliminate the seeds of conflict.