信号系统系统检验包括设备单项检验、子系统检验、（）等内容。
参考答案：系统接口检验
— Do you know Mr Black _____ by the police?
— Yes. He's believed to have killed a woman. [ ]
A. wants
B. is wanted
C. is wanting
D. has wanted
红细胞破坏过多性贫血又称为（）
A.急性贫血
B.慢血性贫血
C.失血性贫血
D.溶血性贫血
E.恶性贫血
