【单选题】
权变管理的核心内容是___。
A. 承认管理中不存在普遍适用的“最佳管理理论”
B. 随机应变
C. 权变关系
D. 管理理论与管理实践密切联系
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答案
A
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【单选题】
下列哪项表现符合去皮质综合征：___
A. 患者意识丧失，但有觉醒和睡眠周期，无意识的睁眼貌似清醒，但缺乏意识活动，各生理反射存在。
B. 患者认知功能完全丧失，呼之不应，但可自发性睁眼，无意义哭笑，原始反射如吸吮、咀嚼、吞咽等存在。
C. 缄默不语、四肢不动的特殊状态，即使强烈刺激也不能改变其意识状态。但患者能注视周围环境及人，貌似清醒。
D. 能恰当地感知和理解外界的刺激或事件，仅保持简单的精神活动，表情淡漠，反应迟钝，对时间、地点、人物的定向能力发生障碍。
【单选题】
以下哪项不是问诊的描述：___
A. 是医生向患者进行疾病调查研究的第一步
B. 是病史采集的唯一手段
C. 是医生通过对患者或相关人员进行询问获取与疾病有关的病史资料
D. 是以综合分析形成初步诊断或为下一步进行的体格检查提出重点的检查内容及为选取必要的辅助检查项目提供线索
【单选题】
关于右心衰竭所致呼吸困难机制错误的是：___
A. 各种原因所致的心包积液、心包缩窄，可使心脏舒张受限，引起肺循环静脉淤血
B. 血氧含量减少，乳酸、丙酮酸等代谢产物增多，刺激呼吸中枢
C. 右心房与上腔静脉压升高，刺激压力感受器，反射性刺激呼吸中枢
D. 淤血性肝脏肿大、腹膜腔积液和胸膜腔积液，限制了呼吸运动，使呼吸面积减少所致
【单选题】
下列哪个因素不是肾源性水肿的机制：___
A. 血浆胶体渗透压降低
B. 肾内前列腺素（PGI2、PGE2等）产生增多，致使肾排钠减少
C. 肾实质血供不足，导致肾素—血管紧张素—醛固酮系统活化
D. “球—管失衡”
【单选题】
以下哪项不是体格检查的描述：___
A. 是医生用自己的感官或传统的辅助器具对患者进行系统的观察和检查
B. 是在问诊的基础上，物理诊断学的进一步深入
C. 是物理诊断学的最基本、最核心的内容之一
D. 揭示机体正常征象的临床诊断方法
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