单项选择题
A.0.9999B.0.9991C.0.999D.0.998
A.石英柱B.填充柱C.分配柱D.毛细管色谱柱
A.GB/T3394-2009B.GB/T3394-2005C.GB/T3394-2007D.GB/T3392-2009