单项选择题
A.23% B.34% C.50% D.26%
A.0.9%,2.3% B.0.8%,5.8% C.0.9%,5.8% D.0.8%,2.3%
A.肝素 B.低分子肝素 C.比伐芦定 D.磺达肝癸钠