Section C
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 1with a single line through the centre.
Questions 16 to 19 are based on the recording you have just heard.

A．Various ways color theory is used in different fields.

B．Various ways artists can use primary colors.

C．Aspects of color theory that are subject of current research.

D．The development of the first theory of primary colors.

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A．The experiments failed to a connection between different colors.

B．The experiments showed useful connections between color and light.

C．The experiments provided valuable information about the relationships between colors.

D．The experiments were not useful until modern psychologists reinterpreted them.

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A．He felt they represented natural light at different times of the day.

B．He noticed that they were the favorite colors of Romantic painters.

C．He performed several scientific experiments that suggested those colors.

D．He read a book by Goethe and agreed with Goethe's choices of colors.

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A．Many people have proposed theories about primary colors.

B．Goethe discovered the primary colors by accident.

C．Goethe probably developed the primary color theory before reading Runge's letter.

D．Goethe may have been influenced by Runge's ideas about primary colors.

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