下面是以神经系统为例的人体结构层次示意图．

关于海陆分布的说法，正确的是（  ）
①北半球比南半球陆地多      ②北半球陆地面积大于海洋
③东半球比西半球陆地多      ④东半球陆地面积比海洋面积大

    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.