【单选题】Could you please your CD too loudly? [ ]
【单选题】When I finally secured a small part in a television play my mother was as proud as a ______ and told all the neighbors about it.
【单选题】不同的动作有不同的姿势,为保持正确动作的运动轨迹,要注意练习动作前的身体姿势。健美运动术语称___
【单选题】如图示为在北戴河旅游景点之一的南戴河滑沙场有两个坡度不同的滑道AB和AB/(都可看作斜面)。甲、乙两名旅游者分乘两个滑沙撬从插有红旗的A点由静止出发同时沿AB和AB/滑下,最后都停在水平沙面BC上.设滑沙撬和沙面间的动摩擦因数处处相同,滑沙者保持一定姿势坐在滑沙撬上不动。下列说法中正确的是()
C.
甲全部滑行过程的水平位移一定比乙全部滑行过程的水平位移大
D.
甲、乙停止滑行后回头看A处的红旗时视线的仰角一定相同
【单选题】It was____to watch small childen play games.