If transport costs _____ into consideration at the beginning, the factory would have been built far from its

present place. [ ]

A. will be taken

B. were taken

C. had been taken

D. were being taken

伤寒、副伤寒预防原则为

保护易感者（）

A.对有关人员进行主动免疫（流行区旅游者、清洁工人、带菌者家属、实验室与医务人员）

B.不必进行预防接种

C.对患者进行免疫

D.对行政管理人员注射

E.对妇女、儿童进行接种