4.1 mL血液需加入多少量的肝素,其抗凝作用最佳?
(A)0.002 mg
(B)0.02 mg
(C)0.2 mg
(D)2 mg
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統計: A(129), B(812), C(1374), D(147), E(0) #1634950
統計: A(129), B(812), C(1374), D(147), E(0) #1634950