【简答题】听下面一段材料,回答第1至3题。 1. Why did Jane call Mike? A. To ask him to meet her. B. To tell him about Tom. C. To borrow his car. 2. Where will Jane be in about one hour? A. At Mike's place. B. At the airport. C...
【单选题】They have decided to show the children around the small town because the brightly colored houses there appeal _____ children .
【单选题】光学平直仪是由平行光管和读数望远镜组成的仪器本体及配置一个在定长板上的 ( )组合而成的。
【简答题】光学平直仪是由平行光管和()组成仪器本体,并配置一个在定长板上的()组合而成。
【简答题】听下面一段材料,回答第1至3题。 1. Why did Jane call Mike? A. To ask him to meet her. B. To tell him about Tom. C. To burrow his car. 2. Where will Jane be in about one hour? A. At Mike's place. B. At the airport. C...
【单选题】下列有关光学平直仪的说法错误的是 。
C.
光学平直仪不能同时测出工件水平方向和水平垂直的方向的直线性