单选题 The police are working in conjunction with tax officers on the investigation.
【正确答案】 B
【答案解析】[解析] 本句意思：警官正和税务官员协同进行调查。in conjunction with意为“与……共同，一起”，与together with(与……一起)意思相近。in succession接连发生，不与with搭配；in alliance结盟；in connection with与……相关。