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【单选题】
前列腺增生排尿障碍是由于A.
膀胱收缩无力
B.
膀胱颈梗阻
C.
尿道粘膜水肿
D.
尿道括约肌痉挛
E.
后尿道形态改变尿道梗阻
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举一反三
【单选题】What kind of feeling does the line “The past is deep” show?
A.
It shows his lamentation of his lost glory
B.
It shows him as a great philosopher
C.
It shows his lamentation of his lost wife and his past life
D.
It shows the poet as vulnerable
【单选题】You install two Exchange Server 2010 Service Pack 1 （SP1） Edge Transport servers named Edge1 and Edge2.You need to ensure that e-mail is sent only to Edge2 if Edge1 fails. What should you do？（）
A.
Create two CNAME records that have the same name.Create one MX record that uses the FQDN of the CNAME records.Assign a priority of 0 to the MX record.
B.
Create two MX records.Assign the MX record for Edge1 a priority of 5.Assign the MX record for Edge2 a priority of 1.
C.
Create two A records that use the same name.Create one MX record that uses the FQDN of the A record.Assign a priority of 0 to the MX record.
D.
Create two MX records.Assign the MX record for Edge1 a priority of 1.Assign the MX record for Edge2 a priority of 5.
【简答题】纯电感元件在交流电路中电压与电流的相位差是多少?感抗与频率有何关系?判断下列表达式的正误。
【简答题】纯电感元件在交流电路中电压与电流的相位差是 °。
【单选题】以下关于虚拟存储器的描述中，正确的是（ ）。
A.
在支持虚拟存储器的计算机中，程序员所写内存单元的地址，不是这台计算机的物理地址
B.
同一台计算机上的应用程序共享一个比实际物理存储器大的多的虚拟存储空间
C.
虚拟存储器的大小跟物理计算机的配置有关
D.
虚拟存储器对所有程序员都是透明的
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