多项选择题
which is enabled by the context of().
A.mobile systems and platforms
B.3G
C.heterogeneous access networks
D.enhanced IP
E.Internet-based
F.WLAN
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1.单项选择题All traffic,be ite-mail or streaming video,travels via a method called packet switching,()parcels out digital data into small chunks,or packets,and sends them over a network shared by countless users.
A.so
B.which
C.and
D.who
2.单项选择题But the hard ware is designed to use even less power than other schemes,making itespecially appropriate for such things as RFID tags,which must work for years () any external power source.
A.with
B.without
C.as
D.than
3.单项选择题But the hard ware is designed to use even()power than other schemes,making itespecially appropriate for such things as RFID tags,which must work for years without any external power source.
A.most
B.more
C.less
D.other
4.单项选择题In order to maintain the reach of a typica l100G WAN transport system(~1500km),several system improvements have to be made to recover the lost SNR,including the use of low-loss low-nonlinearity (),Raman amplification,and stronger error correction.
A.opticalfiber
B.traffic
C.internet
D.signaling
5.单项选择题In order to maintain the reach of a typica l100G WAN transport system(~1500km),several system improvements have to be made to recover the lost(),including the use of low-loss low-nonlinearity optical fiber,Raman amplification,and stronger error correction.
A.noise
B.SNR
C.speed
D.eeor
6.单项选择题常用的微机一般不具备()特点。
A.计算精密度
B.复杂的逻辑判断能力
C.防病毒侵扰
D.记忆能力强
7.单项选择题固定电话用户需要过户,到电信营业网办理相关手续时,必须要带()。
A.新客户有效证件和当月缴费收据
B.新客户有效证件和上月缴费收据
C.新老客户有效证件和当月缴费收据
D.新老客户有效证件和上月缴费收据
8.单项选择题“自适应的”通常翻译为英文是()。
A.adaptive
B.autonomous
C.automatic
D.active
9.单项选择题在通信专业中,DSP的英文全称是()。
A.Data Signal Pulse
B.Digital Signal Processing
C.Data Stream Property
D.Digital Spectrum Programming
10.单项选择题以下()的工作速度最应尽量与CPU的速度相匹配。
A.主存储器
B.外存储器
C.移动硬盘
D.U盘
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