And the first question I think that you have on the quiz here is the following: what keyboard instrument is playing here?
这里有个小测验，第一个问题是，这段音乐是用什么键盘乐器演奏的。
And the first question I think that you have on the quiz here is the following: what keyboard instrument is playing here?
这里有个小测验，第一个问题是，这段音乐是用什么键盘乐器演奏的。
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