【单选题】
输入命令MTEXT后,显示如图所示的界面,则系统变量MTEXTED是多少?()<br /> <img src="https://nimg.ppkao.com/2017-07/lizhangyong/2017071917401918834.png?sign=39046d4d49c6c9aae65c480bdfb4fbe7&t=62d053c9" />
A、Internal
B、External
C、Autodesk
D、OldEditor