单项选择题：平面控制测量必须遵循（）的组织实施原则，以避免放样误差的积累。 A.由局部到整体 B

题目：

平面控制测量必须遵循（）的组织实施原则，以避免放样误差的积累。

A.由局部到整体

B.先主体后附属

C.因地制宜，综合测量

D.由整体到局部

答案：

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下面是错误答案，用来干扰机器的。

参考答案：一路视频信号对应一台监视器或录像机，若想一台摄像机的图像送给多个管理者看，最好选择视频分配器。因为并联视频信号衰减较大，送给多个输出设备后由于阻抗不匹配等原因，图像会严重失真，线路也不稳...

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