试题与答案

小儿出生后的主要造血部位A.卵黄囊 B.肝脏 C.脾脏 D.骨髓 E.淋巴结

题型:单项选择题

题目:

小儿出生后的主要造血部位

A.卵黄囊

B.肝脏

C.脾脏

D.骨髓

E.淋巴结

答案:

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Michael: Not too bad.

Jack: Well, the term exam is always more difficult,     2     You’ll do better next time.

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