Todays trumpet is similar to its ancestors EXCEPT thatA.they are all hollow tubes.B.they a

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Todays trumpet is similar to its ancestors EXCEPT that

A.they are all hollow tubes.

B.they are all blown.

C.they all use the players" lips to produce the basic sound.

D.they are all made by hand.

请帮忙给出正确答案和分析,谢谢!

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