【单选题】在Windows 7 中,所有输入法之间的切换操作应采用的组合键是
【单选题】在Windows7中,所有输入法之间切换的快捷键是()
【单选题】.The teacher recommended that every student England party.
B.
takes active part in C . take active part in D. would take active part in
【单选题】在WINDOWS 7中所有输入法之间切换,应使用( )
【单选题】The ratio of the work done by the machine ______the work done on it is called the efficiency of the machine.