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Name: Kelsey

Age: 22

I can sing and dance. I can play the violin and the piano, but I can't play the guitar.

Name: Paul

Age: 13

I can sing, but I can't dance. I can play the trumpet and the guitar but I can't play the violin.

下列叙述正确的是（    ）

如图所示的小实验中，不能说明“流体中，流速越大，压强越小”的是（   ）