He has ______ lung cancer for several years and is never _______ pain.

A．recovered from; away from

B．suffered; away from

C．recovered; free from

D．suffered from; free from

病鸡羽毛蓬乱、搔痒不安、贫血、消瘦、产蛋量下降，未出现痘状疹。检查病鸡体肉眼可见红色微小虫体。则可判定该病鸡患有( )。

A．膝螨病

B．新勋恙螨病

C．皮刺螨病

D．长羽虱

E．圆羽虱