应用血管活性药物时,对病人主要观察()的变化,为治疗提供依据。
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社区护士指导社区内有乳腺癌家族史的40岁以上女性进行乳房自检,这是()。
A. 一级预防
B. 二级预防
C. 三级预防
D. 临床期预防
E. 病因预防
患者,女,26岁,面黄、乏力、皮肤紫癜一年,体检巩膜轻度黄染,Hb60g/L,RBC1.8×109/L,WBC4.6×109/L,PLT36×109/L,Coombs实验(+),尿Rous实验(-),骨髓有核细胞增生明显活跃,粒系比例、分布正常,红系占0.32,分布大致正常,成熟红细胞畸形较明显,可见较多球形红细胞及泪滴状红细胞,巨核细胞96个,其中颗粒型0.92,裸核0.08,未见产板型,该患者最可能的诊断是()
A. 缺铁性贫血
B. 巨幼细胞性贫血
C. 特发性血小板减少性紫癜
D. 弥散性血管内溶血
Evens综合征
Which two statements about the Wi-Fi Multimedia (WMM) standard are true?()
A. Lower-priority traffic is assigned short interframe wait-timers to allow higher-priority traffic access to the wireless network first.
B. Packets that are not assigned to a specific access category are categorized by default as the background access category.
C. The WMM standard was implemented after the 802.11e standard was approved to provide support for non 802.11e devices.
D. WMM is a Wi-Fi Alliance standard that was implemented before the 802.11e standard was approved.
E. WMM uses Enhanced DCF (EDCF) to stipulate fixed and random wait times for the different access classes.
标准Q3、F&f网管接口功能由()板提供,机架告警单元的告警信号来自()板。