问题 单项选择题 配伍题

肺动脉瓣关闭不全可见()

A.右心室和肺动脉干扩大

B.左心房轻度增大伴明显肺淤血

C.右房和上腔静脉突出

D.左心房增大

E.右房增大,右心室上腔静脉和奇静脉扩大

答案

参考答案:A

材料题

阅读下列材料:

1929——1933年资本主义国家经济危机简况

请回答:

(1)这次经济危机的特点如何?

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(2)美、德、日三国是怎样寻找出路的?

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(3)你对美德的出路有何认识?

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(4)结合所学知识,谈谈上述国家采取不同办法的原因是什么?对世界产生了什么影响?

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(5)这次经济危机对世界历史发展产生的最深刻影响是什么?

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多项选择题