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【单选题】
关于血细胞比容测定,下述正确的是A.
法要求2264g离心30分钟
B.
以106mmol/L枸橼酸钠溶液为抗凝剂
C.
为缩短时间,法可用3000rpm离心15分钟
D.
微量法要求10 OOOrpm离心5分钟
E.
结果观察,离心后血液分四层
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as faster as
B.
so fast than
C.
faster
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