题目内容

三维MRA成像的错误叙述是()

A. 三维图像质量对梯度场要求很高
B. 防止涡流故双极梯度场施加时间很短
C. 要有强的静磁场和窄的脉冲
D. 梯度线圈要保证上升和降落时间最短
E. 要有足够的梯度场强,克服B0的不均匀

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预拉波形伸缩器时,其拉伸偏差不得大于()mm。

A. 5
B. 10
C. 15
D. 20

Your companys network includes an Active Directory Domain Services (AD DS) domain. You manage Hyper-V servers by using Microsoft System Center Virtual Machine Manager (VMM) 2008 R2. You install Windows Server 2008 R2 Datacenter (Server Core Installation) on 100 new servers, and you add the servers to the domain. You need to add the Hyper-V role to the 100 new servers. You must accomplish this goal by using the least amount of administrative effort. What should you do?()

A. Run the Add-WindowsFeature RSAT-Hyper-V PowerShell cmdlet.
B. In Server Manager, use the Add Roles Wizard to add the Hyper-V role.
C. In the VMM Administrator Console, use the Add Hosts Wizard to individually add each new server to VM
D. In the VMM Administrator Console, use the Add Hosts Wizard to simultaneously add all 100 new servers to VM

饰面砖粘贴工程一般适用于内墙饰面砖粘贴工程和高度不大于l00m、抗震设防烈度不大于8度、采用()施工的外墙饰面砖粘贴工程。

A. 满粘法
B. 点粘法
C. 条粘法
D. 空铺法

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