A:超声波是传播速度大于340m/s的声波
B:“闻其声知其人”是依据声音的音色来判断的
C:深夜,优美的歌声不是噪声
D:只要物体振动,就能听到声音
治疗性克隆有望最终解决供体器官的短缺和器官移植出现的排异反应.下图表示治疗性克隆的过程,下列有关叙述正确的是( )
I have been to the Country Park many times. I think the Country Park is a b____ place for people to v____. There is a big l____ in the Country Park. We can go boating there. We always have a good t____ in the park. There are a lot of nice b____ in the park. They fly in the park and s____ in the park. How beautifully they can sing.
We ____ ____ ____ Kang kang's birthday party. All of us had a good time.