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问题 单项选择题

肺源性心脏病降低肺动脉高压最关键的是（）

A.利尿剂

B.呼吸兴奋剂

C.纠正缺氧

D.支气管扩张剂

E.强心剂

答案

参考答案：C

单项选择题

用益物权不包含（）权能。

A．占有 

B．使用 

C．收益 

D．处分
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单项选择题

______ is a master satirist. His satire is usually masked by an outward gravity and an apparent earnestness which renders his satire all the more powerful.

A. Jonathan Swift



B. Daniel Defoe
C. Henry Fielding



D. Thomas Gray
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