男性,28岁,活动后心悸、气促1年,2年前有心肌炎病史。查体:血压140/90mmHg,心脏叩诊浊音界扩大,心尖冲动及第一心音减弱,心尖部有3/6级收缩期杂音,心率110次/分,频发期前收缩,双肺底少量湿啰音,颈静脉怒张,肝肋下3cm,双下肢轻度水肿,心电图示频发室性期前收缩。该病例主要与下列相鉴别的疾病是()
A. 心包积液
B. 缩窄性心包炎
C. 限制型心肌病
D. 缺血性心肌病
E. 肥厚型心肌病
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如何确定电子商务交易的贸易双方正是进行交易所期待的贸易方,是保证电子商务顺利进行的关键,这一问题关系到电子商务的()。
A. 完整性
B. 可靠性
C. 机密性
D. 有效性
A system administrator for a business recovery service center needs to test disaster recovery strategies for their clients running Linux. Each client has a different system configuration. Each time a client comes in, the system configuration of the managed system must change. What is the best way to handle this using LPAR?()
A. Create a system profile. Reconfigure the managed system by activating and deactivating the system profiles.
B. Create one partition profile for each client. Reconfigure the managed system by activating the partition profiles for that client.
C. Dynamically move processors and memory as needed into each logical partition. Reconfigure the managed system by activating and deactivating partition profiles.
Dynamically move processors and memory into each logical partition on the server if additional resources are needed. Reconfigure the managed system by activating and deactivating the system profiles.
秦山地区居民的天然放射性本底是0.24毫希/年,而一座百万级核电站周围的居民多接受的放射性为0.048毫希/年,与每天抽()支香烟的辐照剂量相当。
A. 十
B. 五
C. 三
D. 一
女性,45岁,主因大便困难,尿频半年。指肛检查:可扪及直肠前壁外压性肿肠,B超示盆腔肿物,呈囊性,约20cm×18cm大小,边界清楚,包膜完整.治疗原则为().
A. 暂时观察
B. 剖腹探查切除肿物
C. 穿刺引流术
D. 剖腹控查,直肠切除
E. 剖腹探查膀胱切除