《大国崛起》有这样一段结束语:三百年前,人类的思想还充斥着迷信和恐惧。水为什么往低处流?太阳为什么升起落下?这些今天看来简单之极的问题,在当时却是根本无法认识和把握的。直到牛顿出现,人类才终于结束了这种状态。下列各项不能作为其论据的是()
A. 发现了万有引力定律
B. 以数学方法构建了力学体系
C. 提出物体运动三大定律
D. 相对论提出推动物理学发展
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男,42岁,搬运工,间歇性腰部疼痛2年,腰痛于冬、春季加重,常在休息保暖及服吲哚美辛后缓解,最近1周腰痛加剧,以致不能弯腰,步行困难,体查脊柱无明显畸形,各椎体无压痛,弯腰45°时左下肢牵扯性疼痛,腰椎X线片未见异常。根据病情,哪项检查最有意义()
A. 血沉
B. 类风湿因子测定
C. 结核抗体
D. 腰椎CT
E. 抗核抗体
You plan to deploy two virtual machines (VMs) that will be configured as nodes in a failover cluster. The VMs will run file and print services. You need to recommend a storage solution for the planned deployment. What should you include in the recommendation?()
A. pass-through disks
B. Network Load Balancing (NLB) for the Hyper-V hosts
C. virtual machine queue (VMQ)
D. Cluster Shared Volumes (CSV)
E. an iSCSI Storage Area Network (SAN)
F. a failover cluster for the Hyper-V hosts
G. Network Load Balancing (NLB) for the VMs
H. Network Attached Storage (NAS)
I. Microsoft System Center Operations Manager with Performance and Resource Optimization (PRO)
J. Windows System Resource Manager (WSRM)
K. a failover cluster between the VMs
L. Virtual Machine Chimney
M. Second-Level Address Translation (SLAT)
N. quick migration
O. Microsoft System Center Virtual Machine Manager 2008 R2
P. a Fibre Channel Storage Area Network (SAN)
女性,41岁。既往有过胰腺炎病史。反复发作右上腹痛2年入院。查体:皮肤、巩膜无黄染,右上腹深压痛,Murphy征阴性。B超:胆囊壁无增厚,大小正常,胆囊内可见多个小结石,胆总管直径1.0cm,下端显示不清。如检查胆总管未发现异常,下一步最合理的处理原则是()
A. 服用排石药物
B. 内镜下行Oddi括约肌切开术
C. 开腹胆囊切除术
D. 腹腔镜胆囊切除术
E. 开腹胆囊切除、胆总管探查术