【单选题】The ( ) of outer space is one of the greatest triumphs of modern science.
【判断题】已知某元素最外层电子位于4s轨道,可知该原子轨道上填充了两个电子。
【判断题】Personal Space is one of the non-verbal forms of communication.
【简答题】何谓靶心率法?如何应用靶心率来确定运动强度?
【判断题】Space is one of the significant categories of nonverbal communication.