The bed has been ______ in the family. It was my great-grandmother's originally.
A. handed out
B. handed over
C. handed down
D. handed round
She's always been kind to me—I can't just turn ______ on her now that she needs my help.
A. my back
B. my head
C. my eye
D. my shoulder
在计算机应用中,CAD和CAM是典型的信息系统。它们属于
A. 管理业务系统
B. 辅助技术系统
C. 信息检索系统
D. 信息分析系统
评标委员会提出书面评标报告后,招标人一般应在( )内确定中标人。
A. 7日
B. 14日
C. 15日
D. 28日