益元散制备时，朱砂与滑石粉应（）
A.制备低共熔组分
B.蒸发去除水分
C.套研
D.无菌操作
E.制成倍散
参考答案：C
The millions of calculations, had they been done by hand,______all practical value by the time they were finisheD．
A．could lose
B．would have lost
C．might lose
D．ought to have lost
按贫血的病因机制下列哪项组合是错误的
A．红细胞破坏过多-慢性感染性贫血
B．红细胞生成减少-再生障碍性贫血
C．红细胞慢性丢失过多-缺铁性贫血
D．骨髓红细胞生成被干扰-伴随白血病的贫血
E．造血原料缺乏-巨幼红细胞贫血
