[问答题]
Since the density of ai8xxc (:mfrau0o e3g(hr decreases with an iakme/i n i pna e8m,kn19 js8u.2:v7cuncrease in temperature, but the bulk modulus B is nearly independent of temperature, how would you expect the speed of sound waves in air t7mmva/e.u 9ncn k2pjus,i inke 8a81:o vary with temperature?