皮皮学，免费搜题
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【单选题】
骨是一类器官,它的构造包括A.
骨松质、骨膜、黄骨髓
B.
骨髓、骨和骨膜
C.
骨膜、骨质和骨髓
D.
红骨髓、骨膜、骨
E.
骨质、骨膜、骨髓、血管、淋巴管
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A.
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B.
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