粗大误差产生的原因既有测量人员的(),如读错、记错、写错、算错等;也有环境干扰的(),如测量过程中突发的机械振动,温度的大幅度波动,电源电压的突变等,使测量仪器示值突变,产生粗大误差。此外,使用()的计量器具,或者计量器具(),也是产生粗大误差的原因之一。
患者男,57岁。3个月来腹胀、水肿,1周来加重伴腹痛。20年前曾发现HBsAg(+)。查体:可见肝掌及蜘蛛痣。蛙状腹,肝未及,脾肋下4cm,全腹压痛,无明显反跳痛,移动性浊音阳性。化验:血白蛋白24g/L,血球蛋白31g/L,血钾3.8mmol/L,血钠136mmol/L,血氯98mmol/L。该患者最可能的基本诊断是()
A. 原发性肝癌
B. 乙肝肝硬化
C. 慢性乙型肝炎
D. 原发性肾病综合征
E. 结核性腹膜炎
现代社会是一个高风险的社会,我国又是一个自然灾害、公共卫生事件、事故灾难等突发事件较多的国家。政府如何应对各类突发事件,减少损失和危害,是对政府应急管理能力的考验,也是检验一个社会是否成熟的标志。按照社会危害程度、影响范围等因素突发事件中最低的级别是()。
A. 轻微级别
B. 普通级别
C. 一般级别
D. 微小级别
Your company has a single Active Directory forest that has a domain in North America named na.contoso.com and a domain in South America named sa.contoso.com. The client computers run Windows 7. You need to configure the client computers in the North America office to improve the name resolution response time for resources in the South America office. What should you do?()
A. Configure a new Group Policy object (GPO) that disables the Local-Link Multicast Name Resolution feature. Apply the policy to all the client computers in the North America office.
B. Configure a new Group Policy object (GPO) that enables the Local-Link Multicast Name Resolution feature. Apply the policy to all the client computers in the North America office.
Configure a new Group Policy object (GPO) that configures the DNS Suffix Search List option to sa.contoso.com, na.contoso.com. Apply the policy to all the client computers in the North America office.
D. Configure the priority value for the Service Location (SRV) records on each of the North America domain controllers to 5.