--It really shocked us that he should have made such_______ rapid progress in his study in  such a short time!

--No surprising. He has been making _______ most of his spare time to study.

A．a; the

B．a; /

C．/; the

D．/; /

嵌顿性疝手术时以下哪项正确（）

A.嵌顿肠襻较多应警惕逆行性嵌顿可能

B.切勿把生命力可疑肠管送回腹腔

C.因疝有回复腹腔可能，必须仔细探查肠管

D.凡施行肠切除吻合术者，宜行疝囊高位结扎及疝修补或成形术

E.一期作疝修补术