---According to my grandma, it is a good idea to eat chicken soup when you have a cold.

---_________,scientists agree with her.

A．Sooner or later

B．Once in a while

C．To be exact

D．Believe it or not

患者，女，18岁。主诉胸闷气憋，呼吸困难3天。患者患支气管哮喘多年，3天前遇寒诱发，胸闷憋气，呼吸困难，脸色苍白，喉间痰鸣如水鸡声，舌苔薄白，脉象浮肾。
要求写出：诊断、病因病机、治法、选方、用药。