试题与答案

魏源是我国近代著名的思想家,下列哪一项是他的著作[ ] A.《海国图志》 B.《

题型:选择题

题目:

魏源是我国近代著名的思想家,下列哪一项是他的著作[ ]

A.《海国图志》

B.《天演论》

C.《制碱》

D.《四洲志》

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析:二尖瓣狭窄时左心房射血阻力增大,早期可发生代偿性肥大和扩张。

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