【单选题】
When a feature remains in its existing charted position but has a change of characteristic,（）command is used on a chart.
A、MOVE
B、DELETE
C、AMEND
D、SUBSTITUTE
查看正确答案
A、Install the license key and all UTM features will be enabled for the life of the product B、Install one license key per feature and the license key will be enabled for the life of the product. C、Install one UTM license key, which will activate all UTM features; the license will need to be renewed when it expires. D、Install one UTM license key per UTM feature; the licenses will need to be renewed when they expire.
