? HYPERLINK :.askcadindex 首页 ?? HYPERLINK :.askcadarticlelist.php 信息资讯 ?? HYPERLINK :.askcads 资源检索 ?? HYPERLINK :.askcadb
一单选题:1重新执行上一个命令的最快方法是:A(A)按ENTER键 (B)按空格键 (C)按ESC键 (D)按F1键2AutoCAD图形文件和样板文件的扩展名分别是:B(A)DWT DWG (B)DWG DWT (C)BMP BAK (D)BAK BMP3取消命令执行的键是:B(A)按ENTER键 (B)按ESC键
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