某定值电阻R两端的电压由3V增大到5V时，通过它的电流变化了0.2A，则该定值电阻的阻值为　 ____Ω，R消耗的功率变化了　 ____W．

人和类人猿的共同祖先是（　　）

    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.