18
A: Their interaction with teenagers proved fruitful.
B: They used libraries less often than teenagers.
C: They tended to visit libraries regularly.
D: Their number increased modestly.
A: Their interaction with teenagers proved fruitful.
B: They used libraries less often than teenagers.
C: They tended to visit libraries regularly.
D: Their number increased modestly.
举一反三
- 18.Questions 16 to 18 are based on the passage you have just heard. A: Their interaction with teenagers proved fruitful. B: They used libraries less often than teenagers. C: They tended to visit libraries regularly. D: Their number increased modestly.
- 中国大学MOOC: The number of teenagers who try smoking is not less than 90 million.
- What does the author mean by saying “Teenagers at risk of depression, anxiety and suicide often wear their troubles like a neon sign” (Lines 1-2, Para.1)? A: Mental problems can now be found in large numbers of teenagers. B: Teenagers’ mental problems are getting more and more attention. C: Teenagers’ mental problems are often too conspicuous not to be observed. D: Depression and anxiety are the most common symptoms of mental problems.
- Teenagers are often very ____________ about their appearance.
- There are two kinds of DNA libraries, they are _____ libraries and _____ libraries。