缺铁性贫血补充铁剂至血红蛋白恢复正常即可停药。
参考答案：错
_____ in time for Christmas，all these gifts must be mailed immediately
A．So as to be received
B．In order to receive
C．So as to be receiving
D．In order to be received
如图所示，木块A在斜面上匀速下滑，画出它所受重力和摩擦力的示意图．
