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【单选题】
计算机网络最突出的优点是A.
高精度计算和收发邮件
B.
运算速度快和快速传输信息
C.
存储容量大和高精度
D.
资源共享和快速传输信息
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【单选题】---How do your parents usually go to work? ---My mother usually goes to work _________ bus while my father ________ a bike to work.
A.
takes, rides
B.
take, by
C.
by, by
D.
by, rides
【单选题】•129:maritime safety information is promulgate via satellite through( )
A.
AMVER
B.
SafetyNET.
C.
NAVTEX
D.
Inmarsat-M MES.
【单选题】My radar is not working. I require shore based radar assistance. Is shore based radar assistance ?
A.
used
B.
available
C.
in use
D.
Can be used
【简答题】Data acquisition techniques include field surveying, global positioning system (GPS), satellite positioning, and remotely sensed imagery obtained through aerial photography and satellite imagery.
【简答题】My father ______ (乘) the underground to work every day. My father goes to work______ ______(骑自行车).
【单选题】A radio link between a transmitting earth station and a receiving earth station through one satellite, which comprises one uplink and one downlink, is named a()
A.
upper link
B.
radio link
C.
down link
D.
satellite link
【单选题】A radio link between a transmitting earth station and a receiving earth station through one satellite is named a（）.
A.
Radio link
B.
Space segment
C.
Satellite link
D.
upper link
【单选题】My radar is not working. I require shore based radar assistance. Is shore based radar assistance______?
A.
used
B.
vailable
C.
in yse
D.
can be used
【单选题】My radar is not working. I require shore based radar assistance. Is shore based radar assistance______?
A.
used
B.
available
C.
in yse
D.
can be used
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