肋骨與胸骨形成胸廓,其上七對叫做
(A)真肋骨
(B)假肋骨
(C)浮動肋骨
(D)懸肋骨
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統計: A(13), B(0), C(0), D(2), E(0) #284378
統計: A(13), B(0), C(0), D(2), E(0) #284378