听群里音频1完成1-5题1Whichofthefollowingis“awasteproduct”ofsound?2Whatdoesitmeanbysayingthatnoise“maygetmuchworsebeforeitgetsanybetter”?3Whatisthelevelofdecibelswherepeoplemayfeelpainintheirears?.4WhichofthefollowingisNOTaharmfuleffectofnoisepollution?5WhichofthefollowingisNOTamajortypesofnoises？
1--ScriptThe sense of sound is one of our most important means of knowing what isgoing on around us. We are warned of da...