单项选择题

A.切叶丝宽度0.9mm/切梗丝宽度0.09mm
B.切叶丝宽度1.0mm/切梗丝宽度0.10mm
C.切叶丝宽度1.1mm/切梗丝宽度0.12mm
D.切叶丝宽度0.8mm/切梗丝宽度0.15mm