求直线AB的实长及对H面和V面的倾角α、β。正确的是（ ） 18.png/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_png.pngafe7f2a90eab166b94d08d22ac1082ec.png
举一反三
- 求直线AB对投影面V、H的倾角，正确的是（ ） 4.png/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_png.png
- 求相交两直线AB、AC夹角的真实大小。正确的是（ ） 20.png/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_png.png
- B25.pdf B26.pdf B27.pdf B28.pdf B29.pdf B30.pdf/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif
- B31.pdf B32.pdf B33.pdf B34.pdf B35.pdf/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif
- 求点C到直线AB的距离。正确的是（ ） 19.png/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_png.png