目的研究苯乙烯对仔鼠神经行为功能的影响。方法选择健康成年体重240～260gWistar大鼠，按雌雄2：1合笼2周。将孕鼠随机分配到对照组，250，5......

Up till now, the crosslinking agent used in the preparation of highcrosslinking polystyrene has usually been divinylbenz......