I’m sorry to tell you it is nearly five months ___ smith got injured in the leg, but I think it won’t be long ____ he completely recovers.

A．after; when

B．before; since

C．that; when

D．since; before

关于糖皮质激素的用法中，小剂量糖皮质激素补充治疗主要用于（）

A.感染性中毒性休克

B.湿疹

C.肾盂性肾炎

D.肾上腺髓质功能不全

E.鼻炎