单项选择题

A.109mmol/L枸橼酸钠液,全血与枸橼酸钠抗凝剂按9:1混合
B.130mmol/L枸橼酸钠液,全血与枸橼酸钠抗凝剂按9:1混合
C.109mmol/L枸橼酸钠液,全血与枸橼酸钠抗凝剂按4:1混合
D.130mmol/L枸橼酸钠液,全血与枸橼酸钠抗凝剂按4:1混合
E.106mmol/L枸橼酸钠液,全血与枸橼酸钠抗凝剂按10:1混合