【名词&注释】
国家安全、信息产业(information industry)、行业管理(industry management)、公安机关(public security organs)、法律规定、统筹规划(overall planning)、刑事犯罪(criminal offense)、人民检察院、主管部门(department in charge)、不间断供电(uninterrupted power supply)
[多选题]（）的建设应当接受国务院信息产业主管部门(department in charge)的统筹规划和行业管理。
A. 广播传输网
B. 公用电信网
C. 专用电信网
D. 电视传输网
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举一反三：
[单选题]为了追查刑事犯罪(criminal offense)的需要，除（ ）之外的机构可以依照法律规定的程序对用户通信内容进行检查。
A. 公安机关
B. 电信运营商
C. 国家安全机关
D. 人民检察院
[单选题]()用于SAE网络，也接入网接入核心网的第一个控制平面节点，用于本地接入的控制。
A. MME
B. S-GW
C. P-GW
D. HSS
[单选题]数字信道通常采用PCM传输系统中一个时隙，速率为()kbit/s。
A. 8
B. 16
C. 32
D. 64
[单选题]然后通过（49）转移到另一卫星上。
A. 硬切换
B. 软切换
C. 星际链路
D. 软切换
[单选题]直流系统的蓄电池一般设置两组并联。为了总容量满足使用需要，蓄电池最多的并联组数不要超过（ ）组。
A. 4
B. 3
C. 2
D. 6
[单选题]在HSDPA中特有的的上行物理信道是()
A. HS-PDSCH
B. HS-SCCH
C. HS-SICH
D. USCH
[多选题]不间断供电(uninterrupted power supply)电源系统采用市电经（）供给380/220V交流50Hz正弦波稳压稳频电源。
A. 整流器
B. 逆变器
C. 变压器
D. 蓄电池
[多选题]4G is one of those terms that keep coming back through marketing brochures for what the latest technologies happen to be in the cellphone market. Every carrier claims to have true 4G, and has been claiming that for years, regardless of what they actually use. The reason was simple because the real 4G specification, expected to be drafted by the International Telecommunication Union, was no where to be found. In fact, the ITU took way longer than being expected to come up with a decision, likely because of massive lobbying campaigns. After all, which company wants to have to redesign its entire network just to be able to keep saying they are 4G? Now however, they ITU has decided itself.What does this mean for carriers and users? First，let’s see what 4G really is. As expected, LTE is central to the ITU strategy,but more precisely,the organization went with LTE-Advanced,which is a stricter version of traditional LTE. To qualify as 4G，a network has to provide 100Mbps connections over wireless,and 1 Gbps over wired. The whole network has to be fully IPv6 compliant. Frequencies have to be variable over 40MHz to avoid interference. Finally, global roaming has to be seamless, along with transitions between wirless and wired connections. This is a real step forward, and a good decision, which ensures that real 4G services will meet a good level of services. Technically, LTE-Advanced is just one of two new standard that are now under the umbrella called IMT-Advanced. The other one is WiMAX 2 which is a further refinement of the WimMAX protocol. Based on the paragraph above，to qualify as 4G, a network has to satisfy （） criteria. The transitions between wireless and wired connections have to be （）. LTE-Advanced is a standard belonging to （）.
A. two
B. three
C. four
D. five A．limited
E. possible
F. seamless
G. deployed A．WiMAX
H. WiMAX 2
I. IPv6
J. IMT-Advanced
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