We went to see him off at the airport and soon the plane ___.

A．was disappeared

B．would have disappeared

C．disappeared

D．was being disappeared

女性，23岁，左下腹隐痛伴脓血便2年，2个月来加重。经过抗炎治疗无效，大便培养多次为阴性，近2周来高热、腹胀，排气减少。体检：一般状况欠佳，贫血貌，全腹膨隆，中下腹部肌紧张，有压痛，无反跳痛，叩鼓音，肠鸣音减弱。

下列哪项检查不宜进行（）

A.大便常规+培养

B.血培养

C.腹部B超

D.肛门指诊

E.钡灌肠