【单选题】摄影测量共线方程是按照摄影中心、像点和对应的( )三点位于一条直线上的几何条件构建的。
【判断题】DNA 双螺旋结构稳定靠氢键、碱基堆积力来维系
【简答题】词汇根据句意及音标或汉语提示填空。(每小题1分,共10分) 小题1:I had a _______ and had to lie in bed. / / 小题2:You look ________(疲劳的), what’s wrong with you? 小题3:Take this ________(药) three times a day. 小题4:He brushe...
【判断题】Smoking in bed causes more than 1,000 fires a year.