原料、物料、包装材料等（）
A．标准操作规程
B．制剂配制规程
C．物料
D．验证
E．洁净室
参考答案：C
His parents showed no signs of _______ to his demands.
A．giving in
B．giving off
C．giving up
D．giving out
简述信息与数据的关系。
