A.The more Jack explained, the angrier the couple got
B.Jack wanted to show his feelings through words after his experience
C.The manager went back to the table and apologized to the couple
D.From this experience, Jack learned more about American culture
A.Measuring Your Intelligence
B.Intelligence and Environment
C.The Case of Peter and Mark
D.How the Brain Influences Intelligence
A.human brains differ considerably
B.the brain a person is born with is important in determining his intelligence
C.environment is crucial in determining a person's intelligence
D.persons having identical brains will have roughly the same intelligence