食管癌术后胃肠减压不恰当的护理措施是

A．若引出大量鲜血或血性液，应降低负压吸引力并通知医生

B．经常挤压胃管，防止堵塞

C．胃管不通畅时，可用少量生理盐水冲洗并及时回抽

D．胃管脱出时，应及时再插

E．胃管放置3～4天，待肛门排气后拔除

I was late for school today because my alarm clock _      .            [ ]

A. went off      

B. had gone off    

C. stopped      

D. had stopped