By calculating the widths and branching ratios of possible four quark states I G (J p c )=1 + (1 + - ) based on the diquark cluster model, it is shown that experimental data reported by the Crystal Barrel Collaboration does not disprove the existence of a 1 + (1 + - ) four quark state B B 1 0 (1475), and that more prices measurement and the partial wave analysis may support the four quark state an alternative explanation for the data.