具有选择性抗凝血因子ⅩA活性的药物是（）
A.抗凝血酶Ⅲ
B.肝素
C.低分子量肝素
D.华法林
E.维生素K
参考答案：C
—There are so many flowers on ___________ side of the street．
—Yes．I hope that all the flowers belong to _______________．
A．every；me and you
B．either；you and me
C．both；you and I
D．each；I and you
护理道德的基本原则是
A．救死扶伤B．增进健康C．预防疾病D．促进康复E．避免伤害
