— Well. I do think the rabbit is a beautiful, gentle animal which can run very fast.

— ______. [ ]

A. So it is

B. So is it

C. So does it

D. So it does

非毒性甲状腺肿胶质贮积期的主要病变是()

A．甲状腺不均匀性肿大

B．滤泡高度扩张，内含大量胶质，上皮细胞扁平

C．滤泡上皮呈高柱状，间质充血

D．甲状腺形成结节

E．滤泡上皮明显增生，呈立方形，伴小滤泡形成