Autumn’s parents didn’t permit her to date and insisted Autumn（）Japanese school on Saturdays.

单项选择题According to the passage, why is light coloring an advantage to large desert animals?

单项选择题TCP IP application layer protocols include the following except ( ).

单项选择题A backup program ( ).

单项选择题( ) are collections of two or more connected computers.

单项选择题We abbreviate Virtual Private Networks to ( ).

单项选择题A traditional private WAN can be ( ) to build and manage.

单项选择题To access the Web, users require a ( ) ,which is the software program used to access the World Wide Web.browser

单项选择题To protect data, you need to implement a data ( ) and recovery plan.above

单项选择题View shortcut menus by ( ) with the mouse.of the above

单项选择题Most RAM is( ).A and C