One day, a school superintendent inspected the school and saw that there was a terrestrial globe in the classroom, and asked Student A: "Tell me, why is this terrestrial globe tilted by 23.5 degrees?"
Student A replied in horror: "I didn't make it crooked."
The school superintendent shook his head and asked Student B. Student B spread his hands and said, "You see, I just came in now."
The school superintendent asked the teacher suspiciously, and the teacher said apologetically: "Don't blame them, this terrestrial globe was like this when I bought it."
The school superintendent began to get angry. At this time, the principal hurriedly explained: "The school has limited funds. This was bought at a street stall."