What are the functions of music mentioned in this video? A To entertain. B To memorize. C To cure. D To inspire.

问答题What are the functions of music mentioned in this video? A To entertain.B To memorize.C To cure.D To inspire.

问答题《水工碾压混凝土施工规范》（DL T 5112-2021）规定，人工砂的石粉（d≤0.16mm的颗粒）含量宜控制12%～25%，其中d≤0.08mm的微粒含量不宜小于7%。最佳石粉含量应通过试验确定