题目

       Bali is an Indonesia island that is rich in indigenous （本土的） culture．A lot of people say that Balinese culture is unique and that the people of Bali have always been contented with the now．If you ask a Balinese person what heaven is like, the probable answer will be just like Bali．This only goes to show that most Balinese people are happy to be where they are and never worry． One factor that contributes to this laidback lifestyle is the culture of close family ties in Bali．In the Balinese culture, support is always available．Balinese extended familie关于声现象，下列说法正确的是（ ）A. 声音可以在固体中传播B. 声音传播的速度与温度无关C. 声音在真空中传播的速度最快D. 只要物体振动，我们就一定能听到声音