问题 单项选择题

微机上广泛使用的Windows2000是

A.单用户多任务操作系统

B.多用户多任务操作系统

C.实时操作系统

D.多用户分时操作系统

答案

参考答案:A

问答题

       在天下的千万条道路中,“丝绸之路”以影响深远广泛、名字优美动听而闻名于世。作为重要的商业通道,“丝绸之路”是联系中外的纽带,沟通东方和西方的桥梁。你知道汉代“丝绸之路”的路线吗?请写出来。

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                             

单项选择题