—Jane. I'd like some coffee for a change.

—__________. It was in the cupboard. [ ]

A. You're welcome.

C. Help yourself

B. Take it easy

D. I'm sorry.

分子生物学诊断方法在传染性疾病中主要的应用领域是（）。

A.确立诊断

B.分析疾病的临床症状

C.指导治疗

D.判断预后

E.预防并发症