There are only two middle schools in Nankou Town, No  1 Middle School and No  2 Middle School  The grades of the students in No  1 Middle School are generally better than those in No  2 Middle School  Since Li Ming from Nankou Town has the best academic performance in his first year of college, he must be a student who graduated from No
1 Middle School in Nankou Town
Northerners are usually taller than southerners. Ma Lin is the tallest in his class, so he must be from the north