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【单选题】
患者，女性，72岁。反复咳嗽、喘息20年，加重1。目前患者的医疗诊断是肺源性心脏病，患者血气分析结果示Pa0250mmHg，PaC0255mmHg。此时患者吸氧的浓度应为（）.
A.
25%～30%
B.
35%～40%
C.
41%～45%
D.
46%～50%
E.
51%～6000
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参考答案：
举一反三
【单选题】The police caught tile man ______ into a house, videoed the whole process and arrested him ______.
A.
to break, on the spot
B.
break, on the spot
C.
break, on spot
D.
breaking, on the spot
查看完整题目与答案
【单选题】Whole-garment process is costly for ( )
A.
using highly skilled workers
B.
using special equipment
C.
slow production process
D.
using lesser-skilled workers
查看完整题目与答案
【单选题】焊件焊接的焊缝尺寸必须满足设计要求，必要时可采用焊接测量器进行外观尺寸检测，焊缝要求成型美观，与母材过渡应圆滑，否则应打磨修整，焊缝宽度应均匀，宽窄公差应在±1mm范围内，焊缝余高一般要求控制在（）以内。
A.
1mm
B.
1.5mm
C.
2mm
D.
2.5mm
查看完整题目与答案
【单选题】The passage is mainly written to ______.
A.
introduce the whole interview process to newcomers
B.
discuss the interview preparations in terms of clothing
C.
recommend the latest fashion in the business world
D.
analyze the difference between college and office wear
查看完整题目与答案
【单选题】9月13日，国际奥委会在秘鲁首都利马举行的第131次全会上，最终确定( )为2024年夏季奥运会举办地、( )为2028年夏季奥运会举办地。
A.
巴黎洛杉矶
B.
洛杉矶巴黎
C.
东京巴黎
D.
巴黎温哥华
查看完整题目与答案
【单选题】胃肠减压的目的不正确的是
A.
降低胃肠道内的压力
B.
改善胃肠壁血液循环
C.
有利于炎症局限
D.
预防体液丢失
E.
促进胃肠功能恢复
查看完整题目与答案
【单选题】The teacher gives guidance to the students through the. whole writing process， and then abolishes the guidance gradually until the students are good at writing. Hare the teacheruses _________ approach...
A.
independent
B.
process
C.
communicative
D.
product
查看完整题目与答案
【单选题】A11 produets have to go ( )five checks in the whole process.
A.
to
B.
through
C.
with
D.
/
查看完整题目与答案
【单选题】All products have to go ( )five checks in the whole process.
A.
to
B.
through
C.
with
D.
/
查看完整题目与答案
【单选题】The police caught the man ______ into a house, videoed the whole process and arrested him ______.
A.
to break, on the spot
B.
break, on the spot
C.
break, on spot
D.
breaking, on the spot
查看完整题目与答案
相关题目：
【单选题】The police caught tile man ______ into a house, videoed the whole process and arrested him ______.
A.
to break, on the spot
B.
break, on the spot
C.
break, on spot
D.
breaking, on the spot
查看完整题目与答案
【单选题】Whole-garment process is costly for ( )
A.
using highly skilled workers
B.
using special equipment
C.
slow production process
D.
using lesser-skilled workers
查看完整题目与答案
【单选题】焊件焊接的焊缝尺寸必须满足设计要求，必要时可采用焊接测量器进行外观尺寸检测，焊缝要求成型美观，与母材过渡应圆滑，否则应打磨修整，焊缝宽度应均匀，宽窄公差应在±1mm范围内，焊缝余高一般要求控制在（）以内。
A.
1mm
B.
1.5mm
C.
2mm
D.
2.5mm
查看完整题目与答案
【单选题】The passage is mainly written to ______.
A.
introduce the whole interview process to newcomers
B.
discuss the interview preparations in terms of clothing
C.
recommend the latest fashion in the business world
D.
analyze the difference between college and office wear
查看完整题目与答案
【单选题】9月13日，国际奥委会在秘鲁首都利马举行的第131次全会上，最终确定( )为2024年夏季奥运会举办地、( )为2028年夏季奥运会举办地。
A.
巴黎洛杉矶
B.
洛杉矶巴黎
C.
东京巴黎
D.
巴黎温哥华
查看完整题目与答案
【单选题】胃肠减压的目的不正确的是
A.
降低胃肠道内的压力
B.
改善胃肠壁血液循环
C.
有利于炎症局限
D.
预防体液丢失
E.
促进胃肠功能恢复
查看完整题目与答案
【单选题】The teacher gives guidance to the students through the. whole writing process， and then abolishes the guidance gradually until the students are good at writing. Hare the teacheruses _________ approach...
A.
independent
B.
process
C.
communicative
D.
product
查看完整题目与答案
【单选题】A11 produets have to go ( )five checks in the whole process.
A.
to
B.
through
C.
with
D.
/
查看完整题目与答案
【单选题】All products have to go ( )five checks in the whole process.
A.
to
B.
through
C.
with
D.
/
查看完整题目与答案
【单选题】The police caught the man ______ into a house, videoed the whole process and arrested him ______.
A.
to break, on the spot
B.
break, on the spot
C.
break, on spot
D.
breaking, on the spot
查看完整题目与答案
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