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主曲率半径N是任意法截弧曲率半径RA的　　　。

A、极大值

B、极小值

C、平均值

时间：2021-07-17 23:36 关键词：工程测量技术高起专测量平差基础 19级补考 2020年第二学期补考测绘工程专升本摄影测量与摇感基础 2020年第二学期期末考试

答案解析

A

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