Marry had made up her mind to give it up, but on _________ second thought she determined to have __________ third try.

A．/ ; /

B．a; a

C．the; a

D．/ ; a

女性，25岁，SLE患者，狼疮性肾病，尿蛋白持续(++)，足量糖皮质激素治疗4周无效，应

A．加用雷公藤
B．加用利尿剂
C．加大糖皮质激量用量
D．加用免疫抑制剂
E．加抗疟药