听力原文:(A) A man is singing into the microphone.(B) A man is touching the strings.(C) A

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听力原文:(A) A man is singing into the microphone.

(B) A man is touching the strings.

(C) A man is adjusting his hat.

(D) A man is paying for a guitar.

请帮忙给出正确答案和分析,谢谢!

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