关于输血的作用,下列哪项是错误的
A.可补充血容量
B.改善循环能力
C.增加血浆蛋白,促进伤口愈合
D.输入抗体可杀灭细菌
E.改善凝血功能,有助于止血
参考答案:D
Yang Lei had ______ unusual experience in Gansu Province. ______ experience
changed her life.
A.a, The
B.an, The
C.an, A
D.an, An
经研究,安氏Ⅲ类骨性畸形的咀嚼效能比正常减少()。
A.20%
B.30%
C.60%
D.55%
E.40%