单项选择题
A.Meters与CentimetersB.Centimeters与Auto-MetricC.Meters、Centimeters与Auto-MetricD.只有Millimeters,没有其他单位
A.Auto Pan ReCenterB.Auto Pan Fixed JumpC.Auto Pan Jump HalfD.Auto Pan Fixed Half
A.按ctrl+A键B.按ctrl+page up 键C.按ctrl+page down 键D.按End键