Mother wanted to be a good provider, a role she _______ since her marriage to Father.

A．shoulders

B．has been shouldering

C．is shouldering

D．shouldered

糖尿病患者胰岛素治疗最主要的不良反应是

A．发生低血糖

B．过敏性休克

C．荨麻疹样皮疹

D．注射处红肿疼痛

E．注射处脂肪萎缩