单项选择题
A.丝结B.绕辊丝C.尾丝D.未拉伸丝
A.伸长不匀率B.长度不匀率C.卷曲不匀率D.干热不匀率
A.≤2.0mg/100gB.≤6.0mg/100gC.≤8.0mg/100gD.≤15.0mg/100g