—My daughter mastered English in less than two years.

—Did she? She________have a gift for languages.

A．can

B．would

C．should

D．must

周围血反应骨髓幼红细胞增生程度准确的指标是

A．血红蛋白和红细胞数

B．网织红细胞百分数

C．网织红细胞绝对数

D．出现有核红细胞

E．出现染色质小体