【单选题】【消耗次数：1】
在静息呼吸空气状态下，总肺泡通气量约达到（）L/min时才能维持正常的肺泡氧和二氧化碳分压，以保证O2和CO2通过血气屏障进行有效的气体交换。
①
2
②
3
③
4
④
5
⑤
6
参考答案：
复制
纠错
相关题目
【单选题】
呼吸衰竭的血气诊断标准静息状态海平面吸空气时动脉血氧分压(PaO<sub>2</sub>)<（） mmHg伴或不伴动脉血二氧化碳分压(PaCO<sub>2</sub>)>（）mmHg
①
70/60
②
70/55
③
66/55
④
60/50
⑤
65/45
【单选题】
二氧化碳被称为温室气体，是因为二氧化碳能（）。
①
A.吸收太阳辐射，使人体增温
②
B.破坏臭氧，使到达地面的紫外线增多
③
C.强烈地吸收地面放出的长波辐射
④
D.通过光化学反应向大气中释放热能
【单选题】
空气中的二氧化碳仅占空气体积总量的（）。
①
A.0.01%－0.02%
②
B.0.03%－0.04%
③
C.0.05%－0.06%
④
D.0.07%－0.08%
【单选题】
二氧化碳分压由高到低的顺序是
①
组织液、静脉血、肺泡气、呼出气
②
组织液、肺泡气、静脉血、呼出气
③
呼出气、肺泡气、组织液、静脉血
④
呼出气、肺泡气、静脉血、组织液
⑤
组织液、肺泡气、呼出气、静脉血
【单选题】
二氧化碳分压由高到低的顺序是
①
组织液、静脉血、肺泡气、呼出气
②
组织液、肺泡气、静脉血、呼出气
③
呼出气、肺泡气、组织液、静脉血
④
呼出气、肺泡气、静脉血、组织液
⑤
组织液、肺泡气、呼出气、静脉血
【简答题】
体内二氧化碳分压最低的部位是[填空(1)]。
随机题目
【单选题】
People’s status in society is frequently ____ by how
much they own.
①
measured
②
examined
③
tested
④
questioned
【单选题】
Jack is so ____ to his appearance that he never has his clothes pressed.
①
adverse
②
anonymous
③
indifferent
④
casual
【单选题】
It’s no good ____ him. He is always indifferent towards others’ matters.
①
to turn to
②
turning to
③
turn to
④
turned to
【单选题】
The child tiptoed（翘起脚尖走）quietly to the bird.
_____ into the forest when he was about to catch it.
①
Flew it away
②
Away flew it
③
Away it flew
④
Flew away it
【单选题】
In order to prepare a lecture, one must do a lot of research
and spend plenty of time____ his material so that his speech
is clear and easy to follow.
①
organizing
②
managing
③
operating
④
breeding
【单选题】
Just as the soil is a part of the earth, ____ the
atmosphere.
①
as it is
②
so is
③
the same as
④
and so is
【单选题】
Some words are hard to____ because they have too many
different uses.
①
express
②
explain
③
define
④
describe
【单选题】
Modern ____ perhaps causes more problems than it solves.
①
technique
②
technology
③
tactics
④
tendency
【单选题】
Dreams are beautiful. However, to _____ them needs lots of time and work.
①
discover
②
find
③
achieve
④
stop