题型:选择题 —What ________ you do the day before yesterday? —I helped _________ with her English.[ ]A. did; she B. do; her C. did; her 查看答案
题型:单项选择题 .胆碱酯酶复活剂氯磷定的特点是A.水溶液不稳定B..能直接对抗体内积聚的乙酰胆碱的作用C.可肌内注射或静脉注射给药D.不良反应较解磷定大E.对有机磷中毒时恶心、呕吐、腹痛等胃肠道症状的疗效好 查看答案