–You seemed to have been impressed by hi
题型：选择题
问题：
–You seemed to have been impressed by his songs.
--Well, not exactly so. It was his way of singing _____his voice that really impressed me.
A．rather than
B．other than
C．together with
D．but also
题型：选择题
| 在探究平抛运动的规律时，可以选用下列各种装置图，以下操作合理的是（ ）
A．选用装置图1研究平抛物体竖直分运动，应该用眼睛看A、B两球是否同时落地 B．选用装置图3要获得稳定的细水柱所显示的平抛轨迹，竖直管上端A一定要低于水面 C．选用装置图2要获得钢球的平抛轨迹，每次不一定要从斜槽上同一位置由静止释放钢球 D．除上述装置外，也能用数码照相机拍摄钢球做平抛运动时每秒15帧的录像获得平抛轨迹 |
