输血易导致循环负荷过重的原因()
A.老年人伴心肺功能不全
B.慢性严重贫血患者
C.低蛋白血症患者
D.大量快速输注血液制品
E.以上均是
参考答案:E
Through the reform, the economic situation of China ____ much better than it used to.
A.turned into
B.turned off
C.turned to
D.turned out
钢液的凝固点主要决定于出钢温度。