According to the passage, which of the following statements is NOT true?A.junk food and "j
According to the passage, which of the following statements is NOT true?
A.junk food and "junk sleep" are equally bad lifestyles.
B.Teenagers are advised to sleep 8 or 9 hours.
C.TVs or computers left on may affect the sleep quality of teenagers.
D.Most teenagers take enough good quality sleep seriously.