【单选题】【消耗次数：1】
如经三腔两囊管压迫止血24h后未见继续出血，此时对三腔两囊管的处理应是（）
①
三腔两囊管继续压迫止血24h
②
气囊放气后留置三腔两囊管观察24h
③
继续压迫至大便潜血转阴后放气拔管
④
放气拔管，继续内科治疗
⑤
三腔两囊管继续压迫止血12h
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【单选题】
应用三腔两囊管治疗食管胃底静脉曲张破裂出血，正确的是（）
①
患者取侧卧位，三腔两囊管由口插入
②
置管后首先向食管气囊内充气150ml
③
放置三腔两囊管期间应注意避免因误吸引起的吸入性肺炎
④
为避免再次出血，三腔两囊管可以持续放置
⑤
如果仍有出血，向胃气囊内充气200ml
【单选题】
下列是三极管各个极的电位，处于放大状态的三极管为
①
VB=0.7V VE=0V VC=0.3V
②
VB=-6.7V VE=-7.4V VC=-4V
③
VB=-3V VE=0V VC=6V
随机题目
【单选题】
2.She the door before she goes away.
①
had locked
②
is locking
③
has locked
④
was locking
【单选题】
10.Now Mike isn’t here. He _________ Mr. Green’s. Perhaps he _______ back in a few minutes.
①
went to; is coming
②
has gone to; will come
③
has been to ; will be
④
is going to; has come
【单选题】
8.They can’t leave until they ______ their work.
①
did
②
are doing
③
have done
④
has done
【单选题】
7. My uncle __________ to see me. He’ll be there soon.
①
comes
②
is coming
③
had come
④
came
【单选题】
14.They ______ lunch at home every day.
①
have not
②
didnt have
③
dont have
④
have not any
【单选题】
6.Sam was ill yesterday, so he _____ his home work.
①
didn’t
②
not did
③
didn’t do
④
didn’t did