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【单选题】

​航带网法空中三角测量中模型连接后模型点坐标是在( )坐标系下。

A.
像空间辅助坐标
B.
摄影测量
C.
大地测量
D.
地面摄影测量
参考答案:
参考解析:
.
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【单选题】It is now almost two years since the European Union decided to go ahead with plans to launch a satellite-navigation network to rival America’s existing Global Positioning System (GPS). For much of thi...

A.
Using of various signals for communication.
B.
Writing message or information in secret code.
C.
Automatic ally operated positioning system.
D.
Accuracy checking device.