31.下列何者是主要的吸氣肌?
(A)腹肌(abdominal muscles)與內肋間肌(internal intercostal muscles)
(B)橫膈肌(diaphragm)與外肋間肌(external intercostal muscles)
(C)橫膈肌(diaphragm)與內肋間肌(internal intercostal muscles)
(D)橫膈肌(diaphragm)與腹肌(abdominal muscles)
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統計: A(30), B(1668), C(255), D(46), E(0) #2408415
統計: A(30), B(1668), C(255), D(46), E(0) #2408415