大红细胞直径为()
A.<6μm
B.>9μm
C.>10μm
D.>15μm
E.>20μm
参考答案:C
解析:
小红细胞直径<6μm;大红细胞直径>10μm;巨红细胞直径>15μm。
Bobbie is always sick and weak his brother Frank is a good football player, as strong as a horse.
A.when
B.as
C.while
D.though
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