If this computer does not give complete satisfaction, please return it to the maker stating when and where it

was _____. [ ]

A. designed

B. operated

C. purchased

D. made

AEFI报告实行属地化管理。（）、（）和疾病预防控制机构执行职务的人员为AEFI的责任报告人。责任报告人发现AEFI后应填写“AEFI登记表”