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【单选题】
患者，女性，73岁，肺源性心脏病出现呼吸困难、咳嗽、咯痰等症状，现采取鼻导管氧气吸入，血氧饱和度未见好转，现需增大氧流量，正确的调节方法是( )A.
直接调节氧流量开关
B.
开关再调节流量
C.
拔出鼻导管，调节流量
D.
更换粗鼻导管并加大流量
E.
分开鼻导管与玻璃接头，调节流量后再接好
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举一反三
【单选题】― Has Jackson finished his work today? ― I have no idea, but he ______ it when I saw him this morning.
A.
had done
B.
would do
C.
was doing
D.
would have done
【单选题】一So you didn’t say “hello” to him last night? 一Well，I stopped and smiled when I saw him，but he _______me and walked on.
A.
ignored
B.
refused
C.
denied
D.
missed
【简答题】相撲 練習二 二、2、
【单选题】—So why didn't you say 'hello' to him yesterday? —Well, I stopped and smiled when I saw him, but he _____ me and walked on. [ ]
A.
ignored
B.
refused
C.
denied
D.
missed
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