一位记者问李富荣：“这么多年你带出来这么多世界冠军，他们有什么特点吗？”李富荣说：“所有的世界冠军只有一个共同点——他们都想当世界冠军”。从哲学上看，李富荣的回答说明了（   ）

补全下列对话。

A. My favourite colour is yellow.     B. What's your favourite toy?      C. My name is Tom. And you?

D. My favourite toy is a computergame.     E. What`s your favourite colour?

L: Hello! What's your name?              

T: ____

L: My name is Lili.

T: ____

L: My favourite toy is a doll. And you?

T:____

L: My favourite colour is red.

L:____

T:____ 

若方程x²+y²﹣x+y+m=0表示圆，则实数m的取值范围是（　　）

When did people come along on Earth?