经纬仪的竖盘按顺时针方向注记，当视线水平时，盘左竖盘读数为90°用该仪器观测一高处目标，盘左读数为75°10′24″，则此目标的竖角为（　　） -题库考试答案搜索网

经纬仪的竖盘按顺时针方向注记，当视线水平时，盘左竖盘读数为90°用该仪器观测一高处目标，盘左读数

为75°10′24″，则此目标的竖角为（　　）

单选题

2021-07-17 23:40

A、<span style="font-family: 宋体;font-size: 15px">57</span><span style="font-family: 宋体;font-size: 15px">º</span><span style="font-family: 宋体;font-size: 15px">10</span><span style="font-family: 宋体;font-size: 15px">′</span><span style="font-family: 宋体;font-size: 15px">24</span><span style="font-family: 宋体;font-size: 15px">″</span><span style="font-family: 宋体;font-size: 15px">    </span></p><p></p>
B、<span style="font-family: 宋体;font-size: 15px">-14</span><span style="font-family: 宋体;font-size: 15px">º</span><span style="font-family: 宋体;font-size: 15px">49</span><span style="font-family: 宋体;font-size: 15px">′</span><span style="font-family: 宋体;font-size: 15px">36</span><span style="font-family: 宋体;font-size: 15px">″</span></p><p></p>
C、<span style="font-family: 宋体;font-size: 15px">14</span><span style="font-family: 宋体;font-size: 15px">º</span><span style="font-family: 宋体;font-size: 15px">49</span><span style="font-family: 宋体;font-size: 15px">′</span><span style="font-family: 宋体;font-size: 15px">36</span><span style="font-family: 宋体;font-size: 15px">″</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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