【单选题】You are not allowed to park you car here. If you ______ it here, I will call the police.
【单选题】下列哪项不属于病例对照研究描述性统计的内容
【单选题】You must be () if you sit here working alI day without rest.
【简答题】一弹性球竖直落在一斜面上,下落高度h=20cm,斜面对水平的倾角 ,问它第二次碰到斜面的位置距原来的下落点多远(假设小球碰斜面前后速度数值相等,碰撞时入射角等于反射角)。
【简答题】If you are staying here, you may leave your car in this place.
【简答题】A.It's better to live here. B.It will change soon. C.You'll like it if you live here for long. D.You'll soon be used to it.
【单选题】--- Do you mind if I smoke here in the living room? --- Well, if you ___. But I’d rather you didn’t.