单项选择题

When computer was invented and began to be widely used, MOUSE quickly ______ its meaning to refer to one of the devices in computer. ()

A．extended
B．narrowed
C．elevated
D．degraded

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单项选择题

ArcGIS软件使用过程中文件夹和文件命名尽量使用中文。
A、正确
B、错误

2.7.2

答案：正确