Question

請(qǐng)寫出如圖18所示的幾個(gè)實(shí)驗(yàn)所揭示的物理道理：

甲：                                                                     
乙：                                                                     
丙：                                                                     
丁：                                                                     

Answer 1

甲：液體可以傳聲 乙：水蒸氣遇冷液化 丙：真空無法傳聲 �。汗庋刂本�傳播解析:
p;【解析】略