When I entered the classroom, our teacher announced we were going to have a math test. I looked at the paper full of what looked like hieroglyphs (象形文字) to me and began to 1 . I did my best that I could, and then left my 2to put my paper in a pile (摞) on the front desk with a sigh (叹息).
I returned and then an idea came to my mind. I checked where the teacher was 3I made my move. She was walking in the 4of the room with hands behind her back. I went back to the pile of test papers that already handed in and when I picked up my paper I also got the paper below it. When I looked at the 5paper I had taken, I discovered it was the work of the 6girl in our class, I copied her answers to my paper.
The next day when I got back my paper, I was 7to see an “F” on it. After class I went to the girl and said to her, “That math test was difficult and I 8it. I guess we need to study more.” Her reply was, “Not me, I got every question right and got an ‘A’ ”.
The teacher knew about it. She didn’t blame me in front of the class and 9me to keep my dignity (尊严). I made a 10to myself never to cheat (作弊) again. I would remember to always be honest in the things I do.
为定义在R上的奇函数，当
时，
（b为常数），则
=