John was given the same suitcase his father and grandfather _______with them to school.

A．took

B．had taken

C．were taking

D．would take

下列哪种是硫脲类抗甲状腺药可引起的严重不良反应（）

A.黏液性水肿

B.心动过缓

C.粒细胞缺乏症

D.低蛋白血症

E.再生障碍性贫血