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【单选题】
You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be? (Choose the most likely answer.)
A.
The router is not configured for the new host.
B.
The VTP configuration on the switch is not updated for the new host.
C.
The host has an invalid MAC address.
D.
The switch port the host is connected to is not configured with the correct VLAN membership.
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参考答案:
举一反三
【单选题】一对称三相负载接入三相交流电源后,若其相电压等于电源线电压,则此三个负载是 ( ) 接法。
A.
Y
B.
Y 0
C.
Δ
D.
不确定
【单选题】Where is Li Lei?
A.
He's sitting on tbe lake.
B.
He's reading by the lake.
C.
Li Lei's standing by the lake.
【单选题】为实现列车平稳安全通过曲线,在线路曲线段要设置轨距加宽和()超高。
A.
外轨
B.
内轨
C.
双规
D.
护轨
【简答题】某些曲线的线路铺设要外轨超高,为什么?
【单选题】运行线路中,曲线地段外轨高度,按部标要求:双线区段外轨超高为()mm。
A.
100
B.
150
C.
200
D.
250
【简答题】在RLC并联电路中,如何得出并联谐振条件
【简答题】已知列车为“202”型转向架,某线路半径为1000m,平均行车速度为80km/h,未被平衡的欠超高容许值为70mm,问: (1)该曲线轨距是否要加宽? (2)该曲线外轨超高为多少? (3)列车通过该曲线的最大容许速度是多少?
【简答题】根据对话内容,补出所缺单词。 Li Lei: Who's ______(1) man? Jim: He's my father. Li Lei: Who's that woman? Jim: ______(2) my mother. Li Lei: And ______ (3) that your sister? Jim: Yes, _______ (4) is. Li Lei: What's h...
【简答题】根据情景完成对话 Li Lei: Who's 1 man? Jim: He's my father. Li Lei: Who's that woman? Jim: 2 my mother. Li Lei: And 3 that your sister? Jim: Yes, 4 is. Li Lei: What's her 5 ? Jim: Sally. Li Lei: How do you 6 t...
【简答题】城市轨道交通线路为什么要设置曲线外轨超高?
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