【单选题】在水平角测量时,目标的偏心误差对观测精度影响最大的是( )。
【简答题】MOOC是Massive( 大规模的 )、 Open( 开放的 )、 Online( 在线的 )、 Course( 课程 )四个词的缩写, 指( ) ,是由很多愿意分享和协作以便增强知识的学习者所组成。
【简答题】Where did Maggie's brother hurt so he cannot attend the formal race?
【单选题】当斜井角度为32°时,矿石提升设备应采用:【 】
【简答题】A.She'll get hurt when skiing. B.She cannot learn skiing well. C.She will get lost on the mountain. D.She won't get the map.
【单选题】While playing on the playground, ____.
C.
my leg was hurt by a stone