单项选择题
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
A.1/2";埋夹间线+1/8";比实样低1/16" B.3/8";埋夹间线+1/8";比实样低1/16" C.1/2";埋夹间线+3/16";比实样低1/16" D.3/8";埋夹间线+3/16";比实样低1/16"