单项选择题
落贴明筒贴脚撇角: ①取消筒贴顶中间(靠领窝那边)打V呃 ②在筒贴脚外边撇角()
A.5/16" B.3/8" C.1/2" D.1/4"
A.1/16 B.1/8 C.3/16 D.1/4
A.1/16;1/8 B.1/8;3/16 C.3/16;3/16 D.1/8;1/8