19.下列那一組構造發育自胚胎的外胚層?
(A) liver, salivary glands, bones
(B) nerves, muscles, lungs
(C) bones, heart, kidneys
(D) skin, brain, nerves
(E) liver, skin, brain

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統計: A(0), B(3), C(0), D(32), E(3) #2266549

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#6047189
Ectoderm 皮膚,腦下腺,神經,...
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