According to the passage, the advantage that pianists have over other instrumentalists is that they do NOT

• A、tune their own instruments.
  
  

• B、practice as often.
  
  

• C、use their muscles.
  
  

• D、aim for clarity of sound.
  
  

If a person's family has had an ulcer, he is three times more likely to get ulcer than people

without a family history of ulcers.

• A、True
  
  

• B、False
  
  

• C、Not Given
  
  

Task 2

21. The machinery outside the calorimeters records everything________

22. Nicola Waiters had time for the experiments________

23. Volunteers have to get prepared for the time in the calorimeter________

24. The experiments show that high-fat diets________

25. It seems Nicola will continue________

A. the volunteers do

B. to support their further sessions of experiment

C. because the life there can be very boring

D. make people overeat

E. because she was her own boss

F. after passing a high-protein test