诊断温抗体型自身免疫性溶血性贫血最重要的实验室检查是()
A.Ham试验
B.免疫球蛋白试验
C.血红蛋白电泳
D.游离血红蛋白测定
E.Coombs试验
参考答案:E
属于疟疾特征的有 ()
A.休作有时
B.寒战壮热
C.项背强直
D.头痛
E.汗出
The survivors of the crashed plane had no food or water and were________the extreme cold weather.[ ]
A.in the possession of
B.in the charge of
C.at the mercy of
D.at the risk of