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【判断题】

光束法区域网空中三角测量以一幅影像所组成的一束光线作为平差的基本单元进行解算。

A.
正确
B.
错误
举报
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.