Official 27 Lec 4
Question 2 of 6
What does the professor imply about the usefulness of the theory of primary colors?

A.

It is not very useful to artists.

B.

It has been very useful to scientists.

C.

It is more useful to artists than to psychologists.

D.

It is more useful to modern-day artists than to artists in the past.

正确答案:A

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