【单选题】集线器是对网络进行集中管理的重要工具,是各分枝的汇集点,其选用时要注意接口类型,与双绞线连接时需要的接口类型为( )。
【单选题】如果将双绞线制作成交叉线,下列设备中,可以用该双绞线连接的是(132)。
D.
交换机的以太口与下一级交换机的UPLINK口
【单选题】将双绞线制作成直通线,该双绞线连接的两个设备可以是( )。
【单选题】已知二次型 通过正交变换 可化成标准形 ,则______.
【判断题】小张“十•一”去买车,销售人员告诉他,他所要这个型号的车型只在十一期间有优惠,过了“十•一”就没有优惠了,此时销售人员在对小张使用压力推销。( )
【简答题】turn up, hold one’s breath, keep one’s word, set off, remind ... of Themissing letter _____ inside a book. Bill _____ and arrived exactly at the time hehad promised . Mary _____ as she waited for Tom’...
【单选题】在使用双绞线连接下面设备时,需要使用交叉线连接的场合是( )。
C.
一个集线器上的专用级联口和另外一个集线器的普通RJ-47口的连接
【单选题】What does one have to be if he wants to make himself creative according to the author?
A.
He should try to be as creative as possible.
B.
He may set up a problem and then try to conceive all the possible solutions to it.
C.
He should study all the techniques mentioned in the passage and try to use them.
D.
He should play a different role from the one he plays now.