硬件是计算机系统中物理装置的总称。 ( )
参考答案：对
解析： 硬件是肉眼可以看见的物理实体，是计算机系统中物理装置的总称。
Never before______ so highly successful in his attempts to forecast the weather accurately on a small scale．
A．man has been
B．man is
C．has man been
D．will be man
总铁结合力在下列哪种疾病升高
A．PNH
B．缺铁性贫血
C．海洋性贫血
D．再生障碍性贫血
