Which of the following best states the main idea of the passage?

• A、It is easier to study medicine than music.
  
  

• B、Painters and composers use totally different methods to reach the public.
  
  

• C、All musicians must know how to time their own instruments.
  
  

• D、Musicians must acquire technique and understanding to perform well.
  
  

请根据所提供材料中的要求撰写一篇150词左右的英语短文。

You want to sell some of your furniture. You think a friend of yours might like to buy it from you. Write a letter to your friend. In your letter,

1) explain why you are selling your furniture;

2) describe the furniture;

3) suggest a date when your friend can come and see the furniture.

You do not need to write the address. Begin your letter as follows:Dear

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