单项选择题
A.GQ1b-IgGB.GM1and GD1a-IgGC.GM1and GD1b -IgMD.GM2and GT1a-IgG
A.GBSB.MMNC.CIDPD.CANOMAD
A.1.5:1B.2:1C.1:1.5D.1:2