在经纬仪照准部的水准管检校过程中，大致整平后使水准管平行于一对脚螺旋，把气泡居中，当照准部旋转180°后，气泡偏离零点，说明（　　）。 -题库考试答案搜索网

在经纬仪照准部的水准管检校过程中，大致整平后使水准管平行于一对脚螺旋，把气泡居中，当照

准部旋转180°后，气泡偏离零点，说明（　　）。

单选题

2021-07-17 23:40

A、<span style="font-family: 宋体;font-size: 15px">水准管不平行于横轴</span></p><p></p>
B、<span style="font-family: 宋体;font-size: 15px">仪器竖轴不垂直于横轴</span></p><p></p>
C、<span style="font-family: 宋体;font-size: 15px">水准管轴不垂直于仪器竖轴</span>

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正确答案

C

试题解析

标签：工程测量技术高起专测量平差基础 19级补考 2020年第二学期补考

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