Affected by their good deeds, I was ________ to join them in helping the old.

A．anxious

B．worried

C．curious

D．eager

静脉注射较大剂量的去甲肾上腺素引起少尿的主要原因是（）

A.肾小球毛细血管血压明显下降

B.血浆胶体渗透压升高

C.囊内压增高

D.滤过膜通透性减少

E.肾小球滤过面积减小