题目

阅读理解，根据短文内容选择正确答案。     Once upon a time in Greece (希腊) there lived a clever man. His name was Aesop.     One day, when Aesop was taking a walk in the country, a man on the road stopped him. He said, Kind sir, can you tell me how soon I can get to town? Go, Aesop answered.     Of course I know I must go, said the man, But I want to know how soon I can get to town. Go, Aesop shouted to him again. The man got angry. He must be mad, he thought. And he walked away. Suddenly he heard Aesop shouting to him, You will get to town in two hours.”（题型一 角度a）已知三角形的周长为15 cm，其中的两边长都等于第三边长的2倍，则这个三角形的最短边长是（ ）A. 3 cm B. 4 cm C. 5 cm D. 6 cm