题目【单选题】测者眼高为9m，物标高程为25m，则物标能见地平距离为()nmile。A. 6.27B. 10.45C. 16.72D. 17.67【单选题】测者眼高为9m，物标高程为25m，则物标能见地平距离为()nmile。A. 6.27B. 10.45C. 16.72D. 17.67题目解答答案B. 10.45