A:人根据音调判断是钟发出的声音
B:人根据音色判断是钟发出的声音
C:钟声通过空气传播到人耳
D:钟声是由钟振动产生的
力是一个物体对另一个物体产生了____。
have some water in different teams wait and see
congratulations danny your team plays very well