------ Did you have _____ great fun at the party?

------ Yes. It’s ______ great pity that you missed it.

A．/; /

B．a; /

C．/; a

D．a; a

关于溃疡型肠结核的病理改变，下列哪项是错误的

A．病变侵犯肠壁的集合淋巴管和孤立淋巴滤泡

B．病变发展过程是：渗出病变-干酪病变-溃疡

C．有时病变可深达肌层或浆膜层

D．可累及周围腹膜或邻近肠系膜淋巴结

E．溃疡边缘与基底闭塞性动脉内膜炎少见，故易引起出血