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【单选题】
以下( )不是C语言提供的关键字。A.
mian
B.
printf
C.
scanf
D.
return
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【单选题】What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?
A.
path cost
B.
lowest port MAC address
C.
VTP revision number
D.
highest port priority number
【简答题】4小时做3个零件，平均做一个零件所需的时间是 3 4 小时．______．
【简答题】某校中学生考察团利用暑假从我国大兴安岭出发，向西经内蒙古、甘肃到等地进行社会实践考察。读下图，回答下列问题： （1）考察团出发后，沿途植被变化依次为________、________、________。 （2）下列考察团成员的描述中，正确的是 [ ] A．河套平原上的农民在引黄灌溉 B．塔里木盆地的工人正在挥汗采油 C．塔里木河的河床全部干涸 D．敦煌遭受了强台风的袭击 （3）沿途中，...
【单选题】What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?
A.
lowest port MAC address
B.
port priority number and MAC address.
C.
VTP revision number
D.
highest port priority number.
E.
path cost
【单选题】What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology?
A.
lowest port MAC address
B.
port priority number and MAC address.
C.
highest port priority number.
D.
path cost
【单选题】What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?（）
A.
path cost
B.
lowest port MAC address
C.
VTP revision number
D.
highest port priority number
E.
port priority number and MAC address
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