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【单选题】
区分造血干细胞和早期造血祖细胞的依据是A.
细胞膜糖蛋白
B.
细胞增殖周期
C.
代谢机制
D.
细胞表面标志
E.
形态
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A.
The woman has a bad memory.
B.
They have to invest more money in the woman.
C.
Understanding is most important.
D.
It's not advisable for the woman to leave here.
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