题目

Lots of people give you advice on overcoming fear.【1】However, I want to tell you that a world without fear would be more dangerous, less rewarding. So we want to treat fear as a friend? Here are three reasons.【2】 Think about it. Do you get more nervous when you meet the girl (or guy) of your dreams? Which is more fearful, talking to the boss of your company or to some of your friends? 【3】If you didn’t have fear to guide you, you might not know that! Not so bad, right?Next, fear encourages us to take action. Fear is a call to action. In the past, our ancestors didn’t run away in已知函数，，则函数的图象大致为（   ） A．                 B．                 C．                 D．