[问答题]
Since the density of air decrew +mm3kqxu8u )ases with an increase in temperature, but bmyiqe q .evn0tshzx/8/0 :m:the bulk modulus B is nearly independent of tempt8 hqn/ byi0z.ve:m e:qsx/m0erature, how would you expect the speed of sound waves in air to vary with temperature?