单选题 Refer to the (73) manual for ribbon(ink tape)installation and exchange.
A.monitor B.printer C.operating system D.Disk

【正确答案】 B
【答案解析】[解析] 请参考打印机的手册来安装和调换墨水带。
A.monitor
监视器
B.printer
打印机
C.operating system
操作系统
D.Disk
磁盘