采样随机误差是在采样过程中由一些无法控制的偶然因素引起的误差
参考答案：对
—Alice, could you help me the meat? I want to make some dumplings for dinner.
—OK, I’ll do it right away.
A. put up B. give up C. cut up
营业管理程序是系统软件。（）
