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【单选题】
肺动脉压低于主动脉压是由于A.
右心室输出量少
B.
肺循环阻力小
C.
肺动脉壁弹性大
D.
肺血管容量大
E.
肺泡内压低
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反馈参考答案：
举一反三
【单选题】()不仅是导游人员必须遵守的一项基本道德规范,也是社会个行个业必须遵守的基本行为准则。
A.
公私分明，诚实善良
B.
爱国爱企，自尊自强
C.
团结协作，顾全大局
D.
一视同仁，不卑不亢
【简答题】Many reports have been received ______ our selling agents in Hong Kong, that there are very heavy demands ______ the captioned garments．
【单选题】Which of the following is not the way to de-stress the parents' heavy burden?
A.
Forgetting about the job as soon as leaving the office.
B.
Reducing participating the activities for the office.
C.
Sharing with the children some happy experience.
D.
Taking part more actively in community activities.
【单选题】_____, the great mother kept waiting for four hours in the heavy snow to save her sick child.
A.
It depends
B.
Take it easy
C.
It is OK
D.
Believe it or not
【单选题】()不仅是导游人员必须遵守的一项基本道德规范,也是社会主义各行各业必须遵守的基本准则。
A.
公私分明，诚实善良
B.
爱国爱企，自尊自强
C.
团结协作、顾全大局
D.
一视同仁、不卑不亢
【单选题】Which of the following is not the way to de-stress the parents' heavy burden?
A.
Forgetting about the job as soon as leaving the office.
B.
Reducing participating the activities for the children.
C.
Sharing with the children some happy experience.
D.
Taking part more actively in community activities.
相关题目：
【单选题】()不仅是导游人员必须遵守的一项基本道德规范,也是社会个行个业必须遵守的基本行为准则。
A.
公私分明，诚实善良
B.
爱国爱企，自尊自强
C.
团结协作，顾全大局
D.
一视同仁，不卑不亢
【单选题】()不仅是导游人员必须遵守的一项基本道德规范,也是社会主义各行各业必须遵守的基本准则。
A.
公私分明，诚实善良
B.
爱国爱企，自尊自强
C.
团结协作、顾全大局
D.
一视同仁、不卑不亢
参考解析：
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