Questions 16 to 18 are based on the recording you have just heard.

Directions: In this section, you will hear three recordings of lectures or talks followed by three or four questions. The recordings will be played only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.
    16.
  • A They differ in their appreciation of music.
  • B They focus their attention on different things.
  • C They finger the piano keys in different ways.
  • D They choose different pieces of music to play.
    17.
  • A They manage to cooperate well with their teammates.
  • B They use effective tactics to defeat their competitors.
  • C They try hard to meet the spectators' expectations.
  • D They attach great importance to high performance.
    18.
  • A It marks a breakthrough in behavioral science.
  • B It adopts a conventional approach to research.
  • C It supports a piece of conventional wisdom.
  • D It gives rise to controversy among experts.