冰雹是在气流强烈升降条件下发生的一种固体降水现象，其颗粒大小一般为5～50 mm。月雹日指某月降雹的天数，下图示意我国东南沿海某省多年平均月雹日的变化。读图回答下列问题。

    Everyone wants to be healthy.Do you know how to stay healthy？What is good for our ____ (healthy)？Here is some i____about it.First，you need to have some healthy eating h____．You must have breakfast.Vegetables and fruits are good for you.Second，you should get some exercise every day.As we know，taking exercise can make you strong and your b____clever.If you go outside，you can also enjoy the ____ (nature) scenes (景色)．Wish you have a healthy body.

— Who's that in the car?

— He's my         , my uncle's son.

输电线的电阻为r，输送的电功率为P，用电压U送电，则用户得到的功率为（      ）