仓储管理中常用的监测清点方式（）
A.五五化堆码
B.光电识别系统
C.电子计算机监控系统
D.四号位监控
参考答案：A, B, C
I think it ______ that she should be knowledgeable about computers for her present job.
A．urgent
B．normal
C．gifted
D．essential
测定酚类水样时应加（）作为水样保护剂。
A.HgCl2
B.HNO3
C.HCl
D.NaOH
