The meeting _____ late in the afternoon and we all went home.

A．broke out

B．broke up

C．broke through

D．broke down

急性肠梗阻

A．右上腹绞痛，伴压痛、黄疸，Murphy征阳性
B．脐周围阵痛，伴有压痛、长鸣音亢进，有肠型
C．上腹压痛，板样强直，肝浊音界消失
D．上腹部胀痛，伴有胃型及拍水声
E．胸骨下持续性钝痛，腹部体征正常