I'm free today. I _____calling on Mr Green, for we haven't seen each other for ten years.

[      ]

A. fancy

B. beg

C. expect

D. attempt

新生仔猪溶血病的典型症状是（）

A.腹浑

B.排尿困难

C.神经症状

D.血红蛋白尿

E.畏寒、霞颤