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单选题

A PA chest projection with accurate positioning demonstrates the followings except______.

A over 8 posterior ribs above the hemi-diaphragm.

B equal posterior rib length on both sides of the chest structures like heart.

C the right hemi-diaphragm lower than the left.

D least magnification of anterior structures like heart.

正确答案:A (备注:此答案有误)

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    A PA chest projection with accurate positioning demonstrates the followings except______.

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