I was angry about the act of dishonesty in the exams. I’m not saying that I’m a good student or I’ve never cheated. I once wrote the answer in my hand for a history test but , unlucky, was caught by my teacher. Because she was one of my most favorites, there were no words to describe how sorry I felt at once. I thought cheat would help me keep my straight A’s. Little did I know that I was hurting not only herself but also my teacher. From this lesson I know teacher want students to succeed by learning on their own and do the best they can, not by cheating.

高炉寿命一代炉龄中每立方米有效容积产铁量（）。

A．低寿命为3000t/m³以下高寿命为5000t/m³以上

B．低寿命为2000t/m³以下高寿命为6000t/m³以上