鼠标和()键配合使用可选多个不连续的文件或文件夹。 ["A.Shift","B.Alt","C.Tab","D.Ctrl"]
倒装句
密度传感器的测量范围为()g/cm3 ["A、0.9-2.76","B、1.0-3.0","C、0.5-3.0"]
一根45号钢的轴,对磨损部分焊补,为了使加工时便于车制,必须进行()处理。 ["A、退火;","B、正火;","C、回火;","D、调质。"]
用鼠标拖动窗口的()可以移动该窗口的位置。 ["A.标题栏","B.菜单栏","C.边框","D.工具栏"]
反问句