TOEFL词汇每日一题：solemn

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　　Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film.

　　The word "solemn" is closest in meaning to which of following?

　　(A) simple

　　(B) serious

　　(C) short

　　(D) silent

　　正确答案：B