题目内容

与图像质量无关的技术性能指标是:()

A. 扫描时间
B. 重建时间
C. 重建矩阵
D. 探测器数目
E. 球管焦点

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酒精灯不用时一定要盖上盖子以免酒精挥发。

A. 正确
B. 错误

GPON的T-CONT分为5种业务类型,不同类型的T-CONT具有不同的带宽分配方式,可以满足不同业务流对时延、抖动、丢包率等不同的QoS要求。T-CONT类型2的特点是()

A. 保证带宽(Assure分配,适合对抖动要求不高的固定带宽业务
B. 固定带宽(Fixe分配,适合对时延敏感的业务
C. 非保证带宽(Non-Assure分配,适合于有服务保证要求而又突发流量较大的业务
D. 尽力而为(BestEffort),无带宽保证,适合于时延和抖动要求不高的业务

化学需氧量测定方法有()及()两种,不同的方法测定结果不同,一般地说,()COD>()COD,故其结果必须注明测定方法。

Your network contains an Active Directory domain named contoso.com. The network is configured to use ISATAP.You have a server named Server1 that runs Windows Server 2008 R2.On Server1, you discover that a tunnel adapter named isatap.contoso.com has a Media State of Media disconnected.You confirm that Server1 has a valid network connection and can query the DNS server.You need to ensure that the isatap.contoso.com tunnel adapter has an IPv6 address.What should you do?()

A. Start the IP Helper service.
B. Start the IPsec Policy Agent service.
C. Add a new rule to Windows Firewall.
D. Add an entry for ISATAP to the Hosts file.

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