RFID是指
A. 电子数据交换
B. 条形码技术
C. 无线射频技术
D. 仓储管理系统
在产品规划布置上将产品分为A、B、C三类的依据是
A. 出货频率
B. 库存总量
C. 资金占用
D. 包装形式
Water content of soil can
A. never be greater than 100 %
B. take values only from 0 % to 100 %
C. be less than 0 %
D. be greater than 100 %
Which of the following statements is correct?
A. Uniformity coefficient represents the shape of the particle size distribution curve.
B. For a well graded soil, both uniformity coefficient and coefficient of curvature are nearly unity.
C. A soil is said to be well graded if it has most of the particles of about the same size
D. None of the above
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