单项选择题
A.[0,1]mm B.[0,1.5]mm C.[0,2]mm D.[0,2.5]mm
A.[0,1]mm B.[0,2]mm C.[0,3]mm D.[0,4]mm
A.[1,2]mm B.[1,2.5]mm C.[1,3]mm D.[0,3.5]mm