A:物体漂浮,F浮=6N
B:物体悬浮,F浮=5N
C:物体漂浮,F浮=5N
D:物体沉在水底,F浮=6N
一些故事影片中常有这样的镜头:高墙倒塌压在众人(演员)身上,造成人员受伤。但在实际拍摄中,倒塌的高墙并不会伤害演员,砌成这种高墙的物块最有可能是()
It was this exploring around problems and his ____(充满活力的) spirit that led to his most famous invention—the telephone in 1876.