27. What does the underlined word "companion" in Paragraph 4 mean in Chinese? A. 公司 B. 机构 C. 对手 D. 伙伴 28. What is the true fact about the robots mentioned? A. The robotic squirrel is needed by every scientist to do some research. ...
89某经纬仪观测竖直角,盘左读数为91°25′24′′,盘右读数为268°34′06′′,则竖盘指标差,以及扣除指标差后盘左的读数分别是()A.+15;91°25′39″B.+15;91°25′09″C.-15;91°25′39″D.-15;91°25′09″的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com