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【单选题】
操作系统的作用之一是________。A.
实现文字编辑、排版功能
B.
控制和管理计算机系统的软硬件资源
C.
将源程序编译为目标程序
D.
上网浏览网页
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】The website allows you to take a ______ tour of the well-known city which was there about 2, 000 years ago.
A.
virtuous
B.
virtual
C.
virtue
D.
virus
【单选题】Facebook allows advertisers to
A.
trade information about people using the website.
B.
sell their products and services for free.
C.
keep the money they make from the website.
【判断题】The police warned people to be on guard against burglary during the festival()
A.
正确
B.
错误
【简答题】Tykoon is an online website that allows you to teach your child financial principles through allowances，assignment of tasks and daily chores.As the parent，you can assign a cash value to the things you...
【简答题】The website allows us to ________ songs and movies for Free.
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