Your virtual environment includes Windows Server 2008 R2 Hyper-V servers. You manage the environment by using Microsoft System Center Virtual Machine Manager (VMM) 2008 R2. You are planning to install an application upgrade. Testing the production application requires access to the following three virtual machines (VMs): a domain controller, a server that runs Microsoft SQL Server, and an IIS Web server. You need to test the application upgrade in a virtual environment that is isolated from the production network. Which two sets of actions should your plan include?()
A. Import the checkpoint into the test environment, and apply the application update for testing
B. Create a checkpoint of the three VMs, and export the checkpoint to the test environment
Create three VMs in the test environment, attach the existing .vhd files, and apply the application update for testing
D. Pause the three VMs, and copy the .vhd files to the test environment
查看答案
对B型超声的描述是:()
A. 图像是以水平基线上冒出的一条条垂直峰线来表示,垂直波峰的高度代表反射回声的振幅
B. 以点显示体内组织结构的两维图像,点的亮度与回声振幅成正比,图像可用于实时和静态扫描
C. 图形表示运动结构的波形,提供一组线条代表运动界面相对时间的运动状况
D. 一种在χ形(凸形)或矩形图像上显示出运动体的一维图示、图像仅可用于实时扫描
避雷线主要用来保护电力设备。
A. 正确
B. 错误
下列戴牙指导中,错误的是()
A. 增强义齿的使用信心
B. 纠正不良的咬合习惯
C. 可以先练习咀嚼小块食物
D. 使用时要保护口腔组织健康
E. 睡觉时将义齿摘下,浸泡于消毒药水中
某护士在给一位乙型肝炎病毒(HBV)携带者注射时,不慎被病人用过的针头刺伤手指。为预防乙型肝炎病毒感染,应首先采取的措施是()
A. 注射抗生素
B. 注射丙种球蛋白
C. 注射乙型肝炎疫苗
D. 注射乙型肝炎免疫球蛋白
E. 注射α-干扰素