根据物流连续性，生产过程主要分为（）几种类型。
A.单件小批量
B.多品种小批量
C.多品种大批量
D.单一品种大批量
参考答案：A, B, C, D
Many of them turned a deaf ear to his advice, they knew it was useful.
A．as if
B．now that
C．even though
D．so that、
静脉补钾速度一般每小时不应超过（）
A.10mmol
B.20mmol
C.30mmol
D.40mmol
E.50mmol
